discount surplus bargain magnetic magnetometer gaussmeter buy for sale magnet magnetic field AC magnetism meter detector sensor probe
Tel: +1-518-608-6479      
    LessEMF.com         AC Magnetic Field Gauss Meters & Detectors  
AC Gaussmeters, Magnetometers, AC/DC Detectors, Sensors, Viewers & Probes    
search by part numberSearch by Part Number          E-mail    Fax/mail order form     Cart      
AC Gaussmeters
©
©
©
©
©
©
AC Gaussmeters on this page Link to DC Gaussmeters


PERSONAL EMF ALARM

Attention all pacemaker wearers!
Attention all paranormal researchers!
Attention electrical sensitives!

Personal EMF Alarm What could be better than a meter which alerts you with a loud audible alarm when it encounters a field? How about a meter which allows you to set the sensitivity of the alarm? How about a 3 axis meter? How about a meter which does all this for AC magnetic fields, AC electric fields, and RF radiation?! This meter does all that, for under $200!!

We are very excited to offer this simple and useful item for anyone who wants to monitor their EMF environment without having to stare at their meter for hour after hour. Carry it with you to alert you when you become exposed to more radiation that you want. Set it in a strategic location to alert you when a field trips the alarm. You set the level (threshold) above which the alarm will sound. Can also be used as a nice analog meter to read field strength. Same specifications as our Trifield Meter.


SPECIFICATIONS
Minimum
Sensitivity
Scale
Accuracy
Frequency Range
Magnetic 1:
1 mG
0-100 mG
±20%
50 Hz - 100 kHz
Magnetic 2:
0.2 mG
0-3 mG
±20%
50 Hz - 100 kHz
Electric:
5 V/m
0-1000 V/m
±30%
50 Hz - 100 kHz
RF/Microwave:
0.01 mW/cm²
0-1 mW/cm²
Factor of 2
at 2 GHz
50 MHz - 3 GHz
What is unique about this meter? Lightning fast response, 3 meters in one, alarm funtion

Made in USA Personal EMF Alarm (Cat. #A154) …… $189.95 add to cart



ElectroSensor™

The Smallest Gaussmeter We Could Find!

ElectroSensor With the push of a button, this simple and accurate gaussmeter measures the level of magnetic field emitted by all common electrical appliances and equipment. An easy to read 10 LED light bar scale gives readings from 1.5 to 30 mG in small increments. The ElectroSensor has a detection range of 50-60 Hz with an accuracy of ±3dB. A pickup coil in the tip of the unit can be rotated for increased directionality. EMF risk can be avoided if you know where it is. If you are looking for a low cost, user-friendly meter, here it is! AAA battery included.

AxisRangeResolutionAccuracy
10-30 mG1 of 10 LED±3dB
What is unique about this meter? 10 LED resolution, smallest gaussmeter, very simple operation
LED 10
LED 9
LED 8
LED 7
LED 6
LED 5
LED 4
LED 3
LED 2
LED 1
30 mG
21 mG
15 mG
11 mG
8 mG
5 mG
4 mG
3 mG
2 mG
1.5 mG

ElectroSensor (Cat. #A144) ................ $24.95 add to cart



Gauss Master

GAUSS MASTER™

Popular EMF Meter with Sound


This little meter measures the level of ELF magnetic field radiation from power lines, computers, kitchen appliances, and more! The easy to read scale, unique built-in audio signal and auto shut-off make it simple to use and a great way to find hidden sources of ELF frequency magnetic fields.

Most experts agree that chronic exposure to more than 2.5 milli-Gauss is inadvisable. This meter will show you which areas are above or below 2.5 milli-Gauss in the 50 - 60 Hz frequency range.

Hand-held, lightweight and durable, with two easy to read scales (0-1 mG, & 0-10 mG), and dramatic audio signal. Our favorite meter for demonstrating the presence of dangerous EMFs to others and paranormal work. Requires one 9V battery (not included). Calibrated at 50-60 Hz.

AxisRangeResolutionFrequencyAccuracy
10-1 mG
0-10 mG
0.1 mG
1 mG
50/60+ Hzno spec
What is unique about this meter? Lightning fast needle response, audio function
ALKALINE 9V BATTERY

Includes nice instructions on how to perform
a proper survey of your home, office, or school yard.

Gauss Master (Cat. #A130) .................................. $34.95 add to cart

Case Price [48 units] (Cat. #A130-case) ............ $960.00 add to cart

Quick Start Instructions for GaussMaster (pdf)


Want to make modifications to your GaussMaster?

Here is a link to a site showing how to add switches, amplifiers, outputs and more to your GaussMaster to make it even more useful.
Here is another for external antenna jack modification
Warning: these sites are not affiliated with Less EMF Inc. We do not vouche for their accuracy, and provide this information only for your enjoyment. Proceed with caution as modifying your meter will void the warranty.


CLIP ON SNAKE LITE

Clip On Light Animation

Flexible neck and bright LED make this a useful tool for reading, writing, and close work. Simple clip will attach it to a visor, clip-board, or book. Or attach it to your gaussmeter with a rubber band! Color styles vary. Batteries included. Great for working in low light conditions.

Clip On Snake Lite (Cat. #P441) ……………………….. $3.95 add to cart



K-2 DELUX WITH On/OFF SWITCH

K-2 DELUX WITH ON/OFF SWITCH

This genuine K-II can Measure the EMF (Electro-magnetic Field) radiation strength of electrical devices in your home, workplace or school, outdoor power lines, underground lines and even when you travel and shop for appliances. Simply Push "ON" and push "OFF" to control the unit. The unit stays on until you push again. Couldn’t be easier.

Since EMF's are nearly everywhere it may be impossible to totally avoid them. The SAFE RANGE EMF METER from K-II can help you measure these potentially harmful fields and determine the safe range to help reduce exposure. It also helps you determine which appliances produce high level emissions.

Five bright colored LEDs will illuminate to indicate the strength of the field. Very easy to see in low light conditions. Response is instantaneous. No bouncing needle or fluctuating number digits. These features make the K-II very popular for paranormal research and ghost hunting as well. Also known as the Safe Range Meter. Made in USA. Uses one 9V battery (included). Single Axis.

  • Exclusive Push "ON", Push "OFF" switch
  • DAS Logo
  • Easy to read 5-Segment LED Display
  • Covers the ELF range & VLF range (50 to 20,000Hz)
  • Uses one 9V battery (included)
  • Single Axis
  • Accuracy of ±5% at 50-60Hz
  • Instantaneous Response To EMF Fluctuations & Spikes

K-2 Delux With Push ON/OFF (Cat. #A103) ..... $59.90 add to cart



Digital Gaussmeter


SINGLE AXIS DIGITAL AC GAUSSMETER / TESLAMETER

Rugged, Compact, & Lightweight Magnetic Field Meter

Couldn't be easier to use, just turn it on and get accurate reliable readings. Perfect for situations needing high resolution measurements of AC magnetic fields without spending a lot of money. Large LCD display reads 0.1 -199.9 mG over the ELF range of 30 - 400 Hz. Provides readout in both mG and microTesla. Calibrated to within 4% ±3 digits at 50/60 Hz. This single axis meter samples every 0.4 seconds when flipped on with slide switch. Requires one 9V battery. One year limited warrantee.

ALKALINE 9V BATTERY Like all single axis meters, this meter must be rotated during use to find the proper orientation to the magnetic field being measured to get proper readings.

AxisRangeResolutionFrequencyAccuracy
10-199.9 mG
0-19.99 microT
0.1
0.01
30 - 300 Hz4% ±3 digits at 50/60 Hz
What is unique about this meter? Lowest cost digital gaussmeter, good accuracy & range, toggle mG/microT

Single Axis Digital Gauss/Tesla Meter (Cat. #A111) ..... $79.95 add to cart



Peak/Hold Gaussmeter


PEAK/HOLD GAUSSMETER

PEAK finds Worst Case Exposure

Nice versatility in a low cost 1-axis meter. Comfortable in the hand and easy to read large digital 3½ display. Peak feature allows user to let the meter run over extended periods to identify “worst case” fields. Hold feature will hold current readout. Can also be used in normal mode to make real time measurments.

AxisRangeResolutionFrequencyAccuracy
10-200.0 mG0.130 - 400 Hz3% ±3 digits at 50/60 Hz
What is unique about this meter? Peak/Hold function

ALKALINE 9V BATTERY

  • Sampling rate: 2.5 times per second
  • Max Hold and Data Hold
  • Uses standard 9V battery (included)
Peak/Hold Gaussmeter (Cat. #A425) ... $99.95 add to cart



PRO 1-AXIS GAUSSMETER


PRO 1-AXIS GAUSSMETER

Peak/Hold and Strong Field Measurement

When you need a gaussmeter with plenty of range, you can’t beat the features of this unit at any price!

Single axis coverage of 30 Hz to 300 Hz
Switchable units: mG to ΅T

    Even More Features:
  • Display Backlight
  • Max/Min/Hold
  • Display updates once per second
  • Auto power off, with override
  • Uses 1 standard 9V battery and can be powered by AC to DC 9V power adapter (sold seperately).

3 Ranges:
mG (milli Gauss)
΅T (microTesla)
RangeResolutionAccuracyRangeResolutionAccuracy
2000.1± (4%+3 dig.)200.01± (4%+3 dig.)
2,0001± (5%+3 dig.)2000.1± (5%+3 dig.)
20,00010± (10%+80 mG)2,0001± (10%+5 dig.)

Pro 1-Axis Gaussmeter (Cat. #A459) ............. $99.95 add to cart




XYZ Axis EMF Tester

XYZ AXIS EMF TESTER WITH REMOTE PROBE

Check Each Axis Individually

This EMF tester is designed to provide user a quick, reliable and easy way to measure magnetic field levels around power lines, electrical appliances, wiring and industrial devices.

- One button scrolls through X, Y, and Z axis readings
- Wide measuring ranges (3 ranges of ΅Tesla and 3 ranges of mGauss)
- Big digit LCD display
- Data hold button
- Simple to operate, uses 1 9-volt battery
- Easy to use remote probe, fits hard-to-reach spaces

UnitRangeResolutionAccuracyAxisFrequency
΅Tesla200.01±(4% + 3d)1
toggle:
X,Y, or Z
30 Hz to 300 Hz
2000.1±(5% + 3d)
20001±(10% + 5d)
mGauss2000.1±(4% + 3d)
20001±(5% + 3d)
20,00010±(10% + 5d)
What is unique about this meter? External probe, scroll X,Y, Z axes, wide range up to 20 G!

Complete with 3ft (930mm) sensor cable, and hard carrying case. 1 year warranty.

XYZ Axis EMF Tester (Cat. #A194) …… $149.95 add to cart



3-AXIS BACKLIGHT GAUSSMETER

High Sensitivity, 3-Axis and Backlight!

3-Axis Gaussmeter With Harmonics True-RMS 3 Axis AC Gaussmeter with all the features you could want. A real technological breakthrough.

AxisRangeResolutionFrequencyAccuracy
30-250 mG
0-25.0 microT
0.01 mG
0.1 microT
15-5500 Hz ±½dB 30 to 5000 Hz
What is unique about this meter? Backlit, peak/hold function, toggle mG/microT, toggle all axes

  • Flat frequency response:
      ±½dB 30 to 5000 Hz
      -3dB 15 to 5500 Hz
  • Selectable axis (3D, X, Y, Z) on ALL features
  • Peak Axis (which axis has the strongest field)
  • On-Screen Graphing (Horizontal bargraph of field strength)
  • Max Hold
  • Variable Brightness Blue LED Backlight
  • Selectable units: milliGauss or microTesla
  • Fast Update Rate: 2.5 times per second
  • Low battery indicator
Alkaline battery (included) typically lasts ~15 hours at default backlight setting. Suitable for general purpose magnetic field readings, and great for paranormal work as well. Lowest price for a 3 axis digital gaussmeter! 1 year wty. Made in USA.

Made in USA 3-Axis Backlight Gaussmeter (Cat. #A107) … $269.00 add to cart

Don't forget the AC to 9V DC Adapter to power this meter for prolonged use:
Regulated AC to 9V DC Adapter for A107 (Cat. #A174-9) ............ $12.95 add to cart



Switchable 1:3 axis meter

SWITCHABLE SINGLE AXIS AND 3-AXIS GAUSSMETER

This Gaussmeter Does It All

Compact and easy to use, this digital unit can measure ELF (13 Hz to 1 kHz) and/or VLF (1 to 75 kHz) magnetic fields in either single axis mode (to help identify the orientation of the field) or 3-axis mode (which makes routine measurements much faster and more reliable). Range from 0.01 mG to 1999 mG. 5½ digit display. 3% accuracy from 45 to 5000 Hz but useful from 13 Hz to 75 kHz. Very simple: One knob selects from these 3 modes: 3-axis ELF+VLF, 3-axis VLF, 1-axis ELF+VLF. Uses standard 9V battery (included). Made in USA. One year mfr warranty.

AxisRangeResolutionFrequencyAccuracy
1 or 30-1999 mG0.01 mG13-75k Hz3% from 45 to 5000 Hz
What is unique about this meter? Distinguish ELF from VLF signals, wide frequency range, NIST traceable calibration

Made in USA Switchable 1:3 Axis Gaussmeter (Cat. #A153) ..... $279.00 add to cart



1-AXIS GAUSSMETER IGNORES POWERLINES

1-Axis Gaussmeter Ignores Powerlines This unique single axis meter is extremely easy to use and displays both total AC magnetic field plus levels with powerline frequencies and their harmonics removed. This allows the user to determine how much of the field is from normal man-made sources and how much is from other sources at a glance. Measure the field from a DC motor, or the fields inside your car without worries of contamination from powerlines. A great tool for looking for transient fields not associated with powerlines!

This is done by using fast and accurate filtering techniques to notch out 50/60 Hz and all harmonics of 50/60 Hz. Just turn it on and go. Unit automatically detects if you're where 50Hz is used or 60Hz is used. Travel all over the world with your meter, with no worries about changing settings. No menus, no complications, no errors - just an ON/OFF switch - as it should be.

Fastest update rate of any digital meter: up to 4.6 times per second. This fast update rate allows you to sweep areas faster, as well as track down sources faster. True-RMS readings are accurate (±4%) for not only pure sine waves, but any field, even transient fields.

A green LED backlight lets this meter go where many others can't - the dark. Want to conserve battery life or don't want the backlight? No problem, turn it off with a simple jumper in the battery compartment. Weighs just 3.8oz and can easily fit in your pocket. At just 4.4" x 2.6" x 1.1", it makes a great, and slim, addition to any toolbox.

Frequency range: 15 to 550 Hz (Flat frequency response).
Measurement range is 0 to 99.9 mG (resolution to 0.1 mG).

AxisRangeResolutionFrequencyAccuracy
1 o0-99.9 mG0.01 mG15-550 Hz±4%
What is unique about this meter? 1-axis Backlit, very simple, True RMS, dual readout to distinguish 50/60 Hz fields (and harmonics) from other frequencies

Made in USA 1-Axis Gaussmeter Ignores Powerlines (Cat. #A108-1) ............. $169.00 add to cart

Don't forget the AC to 9V DC Adapter to power this meter for prolonged use:
Regulated AC to 9V DC Adapter for A108-1 (Cat. #A174-9) ............ $12.95 add to cart



3-AXIS GAUSSMETER IGNORES POWERLINES

3-Axis Gaussmeter With Harmonics In paranormal research, the presence of man-made 50 or 60 Hz EMF signals can give rise to "false" readings. Wouldn't it be great if you could set your EMF meter to ignore these ever-present signals and just pick up everything else? Now you can! With this meter you can look at just the 50/60 Hz signal, or just the harmonics, or just everything else. And you can compare that reading to the overall reading on the same screen at the same time! Adjustable back light too, because it was designed with paranormal research in mind.

Also perfect as an all purpose True-RMS 3-Axis meter with high sensitivity. Great for distinguishing a 50 or 60 Hz signal from the higher frequency harmonic signals which often accompany power line magnetic fields.

AxisRangeResolutionFrequencyAccuracy
1 or 30-250 mG0.01 mG15-5500 Hz±½dB 30 to 300 Hz
What is unique about this meter? 3-axis Backlit, peak/hold function, toggle mG/microT, toggle all axes

    More Features:
  • Flat frequency response:
    • ±½dB 30 to 300 Hz
  • Selectable axis (3D, X, Y, Z) on ALL features
  • Two display styles:
    • On-Screen Graph: select any of 3 values: total RMS, notched, bandpassed
    • Digital readout: RMS broadband plus select:
      60Hz only, or 60Hz+Harmonics, or 50Hz, or 50Hz+Harmonics
  • Variable Brightness Blue LED Backlight
  • Max Hold of any of the 3 values
  • Selectable units: milliGauss or microTesla
  • Low battery indicator
Alkaline battery (included) typically lasts ~20 hours at default backlight setting. Feature rich and easy to use, same meter works for both 50 or 60 Hz. Great price too! 1 year wty. Made in USA.

Made in USA 3-Axis Gaussmeter Ignores Powerlines (Cat. #A108) .......... $319.00 add to cart

AC to 9V DC Adapter


Don't forget the AC to 9V DC Adapter to power this meter for prolonged use:
Regulated AC to 9V DC Adapter for A108 (Cat. #A174-9) ............ $12.95 add to cart



DATALOGGING 3-AXIS GAUSSMETER WITH PC INTERFACE

DATALOGGING 3-AXIS GAUSSMETER
WITH PC INTERFACE

Tremendous Capability and Versatility

We are really excited about this new meter designed to provide quick, reliable and easy measurements of electromagnetic field radiation levels around power lines, home appliances and industrial devices. Displays 3-axis microTesla or milliGauss readout with date/time; offers Data Hold & MAX/MIN Hold functions. Extremely sensitive with range all the way up to 1999 mG. Want more? Toggle between 3-axis sum or show each X, Y, Z value. Data-logging capacity with time/date stamp for field use and USB interface, Windows 98/2000/XP/7 software and cable included. Large, easy to see display and rugged meter body. Uses one 9V battery. Great price too!

SPECIFICATIONS

Display   4 digits. Max. indication 1999
Auto Range   20/2000 milli Gauss
  2/20/200 micro Tesla
Resolution   0.01/1 milli Gauss
  0.001/0.01/0.1 micro Tesla
Number of Axis   Three axis
Band Width   30 Hz to 2000 Hz
Accuracy   ±(3%+30d) at 50/60Hz at 20 mG; ±1mG below 2 mG
Datalogger storage   9999 manual readings
Sampling Time   2.5 per second
Accessories Included   Operation Manual, 9V battery, Software for Windows and USB Cable, padded case
What is unique about this meter? Data logging and PC interface, low cost

Click here for More Information about the software supplied with this product.
Click here for User's Manual

Datalogging 3-Axis Gaussmeter w/ PC (Cat. #A494) ……. $199.95 add to cart


AC to 9V DC Adapter


Don't forget the AC to 9V DC Adapter to power this meter for prolonged use:
Regulated AC to 9V DC Adapter for A108 (Cat. #A174-9) ............ $12.95 add to cart



4180 ELF GAUSSMETER

Newest Gaussmeter from FW Bell

4180 ELF GaussMeter Lightweight and completely self contained, this easy to use gaussmeter from FW Bell is ideal for commercial or home use. Accurately measures Extremely Low Frequency Magnetic Fields generated by electrical equipment. Applications include detecting magnetic field emissions from a wide variety of sources, including video display terminals, AC power lines, office equipment, household appliances, and all types of electronic equipment. Look at these key features: 3½ digit LCD display, Auto Range and Relative Mode. Selectable X, Y, or Z Axis plus Vector Summation, true RMS reading. User selectable Gauss or Tesla readout. Built-in software eliminates the need for complex calibration procedures. User prompts on the LCD allow fast, simple pushbutton operation. Low battery detection. Complete with instruction manual, soft carrying case, and four AAA batteries. USB interface allows power through the USB (cable not included), can also be powered by external 5VDC adapter (not included).

Axis1 or 3
Basic Accuracy (> 4 mG, 40-80Hz)± (2% + 1 digit) typical
Frequency Response ±5%30 to 2kHz
Update Rate (display)2 readings/sec
Measuring Range0.1 to 599 mG; 0.01 to 59.9 ΅T
Minimum Resolution0.1 mG /.01΅T
What is unique about this meter? Toggle 1/3 axis, toggle mG/microT, high accuracy

Made in USA 4180 ELF GaussMeter (Cat. #A171N) ............... $325.95 add to cart


4190 ELF GAUSSMETER

Enhanced Features

This meter is like the 4180 on steroids. All the same features, plus improved accuracy, wider range, Auto Zero, Min./Max./Peak Hold, and Data Logging Software for PC.

Corrected analog output (5K samples /sec) for viewing analog waveform on an oscilloscope, spectrum analyzer, or similar test equipment which is useful for determining harmonic content and other waveform properties.
Plus DC voltage level proportional to the displayed level of the magnetic field which is useful for driving chart recorders, data loggers, or other data acquisition equipment. 10 mV/mG; 2V FS (200 mG or 2000 mG). Software CD included.

Axis1 or 3
Frequency Response/Accuracy25 - 1200Hz, ±5%
20 - 2000Hz, ±15%
Measuring Range0.1 to 1999 mG;
0.01 to 199.9 ΅T
What is unique about this meter? AC/DC voltage output

Made in USA 4190 ELF GaussMeter (Cat. #A172N) ............. $425.95 add to cart



AC/DC milliGAUSSMETER

Two High Sensitivity Meters in One AC/DC milliGaussmeter

A useful and reasonably priced meter for measuring both AC and DC magnetic fields. Easy to use with external single axis probe. Excellent range with great features including:

  • DC and AC (40 Hz to 10 KHz) magnetic field measurement
  • High sensitivity: down to 0.1 mG
  • High range: up to 3000 mG
  • Accuracy: ±(2% + 2 mG)
  • N pole/S pole indicator
  • Reads in mG or ΅T (toggle)
  • Zero adjustment button (tare) for relative measurement
  • Data hold function for freezing the current value on display
  • Records Maximum and Minimum readings with Recall
  • 1 second sampling time
  • 3.5 mm data output jack
What is unique about this meter? Measures both AC and DC magnetic fields

Uses 6 AAA batteries (not included). Can also be power by external DC 9V adapter (sold separately).

AC/DC milliGaussmeter (Cat. #A112) ….. $399.95 add to cart




Recommended with any meter purchase:

TRACING EMFs in Building Wiring and Grounding

Tracing EMFs 3rd edition, by Karl Riley.

A practical guide for reducing AC magnetic fields produced by building wiring and improper grounding practices. Step by step instructions for detecting wiring problems and a full description of common wiring errors and how to correct them. This guide is for anyone who wants to inspect their own home, electricians and electrical inspectors, those starting a new profession in EMF consulting, as well as those involved with the process of building construction such as architects and contractors. Utility personnel involved in EMF measurements can profit from this information. 96 pages, spiral bound book. Completely updated in 2005.

TRACING EMFs (Cat. # A530)....................$28.00 add to cart



EMDEX SNAP

EMDEX Snap

The EMDEX Snap is an easy to use 3-axis digital survey meter. Controlled by a Motorola microprocessor, the Snap displays resultant magnetic field levels every 0.5 seconds. One simple On/Off switch. 0.1-1000 mG range with typical 3% accuracy at 50/60 Hz. Covers 40-1000 Hz. The Snap is a low-power consumption unit which can operate continuously for over 50 hours on a single 9-volt battery (included). Made in USA with 90 day mfr wty. Includes NIST Traceable serialized calibration certificate.

AxisRangeResolutionFrequencyAccuracy
30-1000 mG0.1 mG40-1000 Hz3% accuracy at 60 Hz
What is unique about this meter? 1 button operation, NIST traceable calibration

Made in USA EMDEX Snap (Cat. #A477) ........... $456.00 add to cart



COMMERCIAL GRADE
AC MAGNETIC FIELD METER

Commercial AC Magnetic Field Meter Very High Accuracy and Sensitivity

Typical Applications include checking the 50 and 60 Hz magnetic fields produced by such equipment as transmission lines, computers, electric blankets, electric appliances, televisions, etc. Very high accuracy and sensitivity. Made in USA by INTEGRITY DESIGN.

Specifications:

  • Portable, digital readout
  • Auditory and visual Alarm
  • Remarkable Linearity
  • Narrow Bandpass Filter
  • Sturdy Shielded and Grounded Probe
  • 200 mV recorder Output
  • Range Settings: 2, 20, 200, 2000 milliGauss
  • Bandwidth: 11 hertz at 3db
  • Battery life: at least 48 hours with one 9v alkaline battery included
  • Weight: 15 oz. (425 grams)
  • Sensor: External Air coil type with 8" handle
  • Very high accuracy: 1% maximum error based on EPA report
  • Padded hard is included
  • Minimum detectable signal: 76 microGauss
  • Resolution: 0.37% @ 101 mG
  • 2 Years Parts & Labor warranty
  • Highly recommended for researchers

Commercial AC Magnetic Field Meter:

Made in USA 50 Hz calibration (Cat. #A1100-50) …........… $625.00 add to cart
60 Hz calibration (Cat. #A1100-60) …........… $625.00 add to cart



E.L.F.-ZONE™ GAUSS METER

Identifies Proper Distance From Radiation Source

E.L.F.-ZONE Gauss Meter What this meter lacks in resolution it makes up with ease of use and very low cost. Will measure ELF/VLF magnetic fields in the frequency range of 20 - 10,000 Hz, with a minimum sensitivity of .25 mG. Laboratory tested and documented for accuracy.

    Three LED lights signal field strength:
  • 0 - 2.5 mG ("safe")
  • 2.5 - 7 mG ("caution")
  • 8 or more mG ("danger")

AxisRangeResolutionFrequency ResponseAccuracy
10.25 to 8+ mG1 of 3 LEDs20 to 10k Hzno spec
What is unique about this meter? Lowest cost gaussmeter available
Single axis sensor, on/off toggle switch. One fresh 9V battery required. Useful for preliminary surveys of home, car, or office. Very popular for paranormal work too!

E.L.F.-Zone Gaussmeter (Cat. #A121) .......................... $12.95 add to cart
Case Price [100 Units] (Cat. #A121-case) ..................... $700.00 add to cart



AM/FM Radio

AM/FM RADIO

Great for Electromagnetic Noise Detection

Tuning this portable AM radio to a station-free dead zone makes it a great device for sniffing out kHz range magnetic fields typically produced by dimmer switches, LED displays, fluorescent lights, TVs, DVDs and computers. These frequencies could be missed by a standard 50/60 Hz gaussmeter. The loudness of the static corresponds to the strength of the field and you can easily hear the frequency of the signal, and distinguish many different tones. Requires no practice or training. Just turn it on and walk around your home or office. Uses 2 AA batteries (not included) and measures only 2 x 3.5 inches. Has a jack for headset (not included) and can also be used for listening to AM/FM radio. Locate EMF offenders that might not otherwise be obvious: AC/DC transformers, alarms clocks, power strips, smoke alarms, cash registers, fish tanks, spark plugs ……

AM/FM Radio (Cat. #A124) ............ $8.95 add to cart



BUDGET BUZZ STICK

Listen to Magnetic Fields

Budget Buzz Stick Common ELF magnetic field frequencies are within the range of human hearing. This simple set up converts the AC magnetic signal directly into a dramatic corresponding sound signal. A 60 Hz powerline field sounds like a 60 Hz hum (a low note on piano keyboard). Harmonics can easily be heard, as well as clicks, static, and hash. LED displays are especially noisy. The strength of the field is proportional to loudness.

Unit includes a single axis probe on 2 foot cable and audio amplifier with adjustable volume. You can even use an optional earphone/headset for discreet operation. Use it to “sniff out” sources of interference, offending EMF, check shielding designs. Makes a great educational tool. Requires one 9V battery.

Budget Buzz Stick (Cat. #A175-B) ...............… $16.94 add to cart



Ultra Low Frequency Spectrum Analysis

Equipment Set-Up for Analyzing Frequencies from 0-60 Hz

Geomagnetometer Analyzing frequency information from ultra-low frequency magnetic fields can be extremely challenging. Air coil type magnetic field probes just don't have the necessary sensitivity below about 20 Hz.

The voltage output from our Geomagnetometer (read more) provides excellent frequency information from low frequency signals. The amplified, unrectified, Hall effect probe output retains all the frequency information from the magnetic field under investigation.

Simply connect the voltage output (3.5mm mono jack) from the Geomagnetometer to the oscilloscope or spectrum analyzer and monitor both field strength AND waveform, frequency, and spectrum distribution of your signals. Because the Geomagnetometer output produces 200 mV at full scale, you get plenty of signal to the oscilloscope or spectrum analyzer.

For example, on the 0-2 mG range: 2 mG produces 200 mV output, .05 mG produces 5 mV. On the 0-200 mG range: 200 mG produces 200 mV output, 5 mG produces 5 mV.

In our tests, the actual output range from the Geomagnetomer extends significantly beyond 200 mV, and was useful up to 60 Hz and beyond. Interested in .01 Hz? 2 Hz? 7.8 Hz? No problem! You can analyze fluctuations in the Earth's magnetic field, fields from audio recordings, and almost any other ultra-low frequency magnetic field source. Possibly biologic and paranormal sources?

Connect your computer to this meter's output to make a spectrum analyzer (with optional PC Based Oscilloscope)! You can even add the Audio Amplifier to boost weak signals.


Individual Components:

Made in USA Geomagnetometer only (Cat. #A3100) ............................................ $750.00 add to cart

To connect Geomagnetomer to your PC, you will need:
6 foot 3.5 to 3.5 mm mono plug cable only (Cat. #A134-cable) ......... $4.95 add to cart



Zero Gauss Chamber

Zero Gauss Chamber This chamber can be used with the Geomagnetometer to provide a zero gauss (magnetic field-free environment) reference, enabling you to take absolute readings of the ambient magnetic field (the Earth's magnetic field is typically around 500 mG). Concentric welded 12" long tubes (1" ID chamber) with stand, made of high permeability magnetic shielding alloy provide excellent shielding.

Made in USA Zero Gauss Chamber (Cat. #A3105) ......... $350.00 add to cart



ELF 3-axis Gaussmeter

ELF 3-AXIS GAUSSMETER

Similar to the VLF version below
but for 20-4000 Hz

    Specifications:
  • Frequency response: 20-4000 Hz
  • Isotropic sensor/Switchable to single axis mode
  • True RMS measurement with peak hold
  • Frequency indicator for each channel
  • Analog output for X, Y and Z axis waveform
  • Error ±3% maximum
  • 16 character x 2 line display
  • Sensor: External three Axis X, Y, Z Air coils type with 8" handle
  • Sensor dimensions: 1.9" diameter, 3.3" length
  • Datalogging up to 32,000 data points, adjustable interval
  • Record data of all channels to PC via RS-232 communication port
  • Auto or manual ranging with auditory alarm
  • Resolution at scale: 200 mG: 0.2 mG; 2000 mG: 2 mG
  • Power consumption: 400 mW
  • Portable and easy to use
  • Weight: 1 lb. / dimensions 7"*4"*3"
  • 9V alkaline battery included & DC adaptor, Hard case is included
  • Two year parts and labor warranty, made in USA

Typical Applications include checking the frequencies and magnetic fields produced by such equipment as computer monitors, television sets, power lines, induction heaters, industrial, scientific and medical equipment and electric appliances, etc.

Made in USA ELF 3-axis Gaussmeter (Cat. #A1131) ……………….. $1495.00 add to cart



VLF 3-axis Gaussmeter

VLF 3-AXIS GAUSSMETER

Professional Quality and Features

Truly unique. You get 3-axis VLF readout with simultaneous frequency indication (1-200 kHz), peak hold, alarm, datalogging, and RS-232 connection. Wow! Portable and easy to use. Covers 0.2 – 2000 mG in 2 ranges. Typical applications include checking the frequencies and magnetic fields produced by such equipment as computer monitors, television sets, video display terminals, induction heaters, industrial, scientific and medical equipment and ground wave energy network. Hard case, 9V alkaline battery & DC adaptor included. Two year parts and labor warranty. Made in the USA

    Specifications:
  • Frequency response: 1-200 kHz
  • Analog output for X, Y and Z axis waveform
  • Predominant frequency indicator for each channel
  • Isotropic sensor… Switchable to single axis mode
  • True RMS measurement with peak hold
  • Error ±3% maximum
  • 16 character x 2 line display
  • Sensor: External three Axis X, Y, Z Air coils type with 8" handle
  • Sensor dimensions: 1.9" diameter, 3.3" length
  • Datalogging up to 32,000 data points, adjustable interval
  • Datalogging interval adjustable from 1 ms to 9999 s
  • Record data of all channels to PC via RS-232 communication port
  • Auto or manual ranging with auditory alarm
  • Resolution at scale: 200 mG: 0.2 mG, 2000 mG: 2 mG
  • Portable and easy to use
  • Weight: 1 lb. / dimensions 7"*4"*3"
  • 9V alkaline battery included & DC adaptor, Hard case is included
  • Two year parts and labor warranty, made in USA
  • Power consumption: 400 mW

Made in USA VLF 3-axis Gaussmeter (Cat. #A1130) ……………….. $1495.00 add to cart



VLF MAGNETIC PROBE

VLF Magnetic Probe 5 kHz - 1 MHz

These passive magnetic field sensors output AC voltage corresponding to the AC magnetic field strength. The frequency of the AC output voltage is the same as the frequency of the magnetic field. Single-axis, so it responds to fields parallel to the sensor axis. The sensor orientation shows the magnetic field polarization. No battery or power supply is needed.

Connect to a display instrument (not included) such as AC voltmeter, oscilloscope or spectrum analyzer to display the output AC voltage and waveform information. These sensors have no minimum measurable field strength, so the sensitivity will depend on your display instrument. Maximum field: the sensor can be damaged above approximately 50 Volts output. Sensor includes operating instructions.

Frequency Range:
For 5 kHz - 1 MHz, the sensor output voltage is at least 70% of the magnetic field strength in Gauss (Volts/Gauss > 0.7). Sensors can also be used below this frequency range, but will have lower output voltage.

Calibration: Each individual sensor is tested and recorded to ensure NIST traceable accuracy. Individual calibration data table is delivered with each sensor.

Rectangular 1"x1"x0.8" and has a BNC (female) output connector on the case. Weighs only 1 oz (30 g).

Click for Frequency Response Graph

Made in USA VLF Magnetic Probe (Cat. #A180) .......... $150.00 add to cart


Bonus!
Use your computer with this probe to make an VLF spectrum analyzer (with optional PC Based Oscilloscope)! This has to be the lowest cost way to get high quality frequency information about your magnetic fields. Explore the mixture of frequencies commonly associated with common household sources, demonstrate harmonics, even compare shielding effects at various frequencies.

Three foot long cable, BNC to BNC with removable dual bana jack.
BNC to Dual Banana Cable (Cat. #A128) ............. $14.95 add to cart



DC/AC Gaussmeter

Magnetic Field Strength with Frequency, DC -1 kHz DC/AC Gaussmeter

So what magnetic fields do you want to measaure? AC? DC? Need frequency information too? This meter does all that and more. Simlutaneous digital readout of field strength and predominate frequency, true RMS measurement with peak hold, One volt full scale analog voltage output, alarm, dataloging up to 32,000 data points, and 3 % error guarantee. External probe.

Operate in 1 of 3 modes:
3 Ranges:
DC only300 G (100 mG resolution)
AC only: 20 Hz - 1 kHz3 kG (1 G resolution)
AC + DC: 0 – 1 kHz30 kG (10 G resolution)

Completely portable. 4 AA alkaline batteries included and optional 6V DC adaptor available. Choose axial probe, transverse probe, or both. Zero gauss chamber (included ) helps when zero-ing the unit.

Made in USA DC/AC Gaussmeter Axial Probe (Cat. #A1132-A)…………............. $1195.00 add to cart
DC/AC Gaussmeter Trans Probe (Cat. #A1132-T)…………............ $1195.00 add to cart
DC/AC Gaussmeter Both A&T Probes (Cat. #A1132-AT)………… $1445.00 add to cart


Zero Gauss Chamber

Zero Gauss Chamber

This chamber can be used with the DC/AC Gaussmeter to provide a zero gauss (magnetic field-free environment) reference, enabling you to take absolute readings of the ambient magnetic field (the Earth's magnetic field is typically around 500 mG). Concentric welded 12" long tubes (1" ID chamber) with stand, made of high permeability magnetic shielding alloy provide excellent shielding.

Made in USA Zero Gauss Chamber (Cat. #A3105) ......... $350.00 add to cart



Deluxe Instrument Case

DELUXE INSTRUMENT CASE

Perfect for instruments or cameras. Fits plenty of stuff in a compact space. This rugged case features aluminum trim, triple riveted corners, carry handle and locking metal clamp hinges. Black hard sidewalls. Padded inside walls but no foam. 12'' x 10'' x 4''.
Deluxe Instrument Case (Cat. #A711) …… $18.95
add to cart



ALKALINE 9V BATTERY

ALKALINE 9V BATTERY

Need batteries? Factory fresh, name brand, low price alkaline 9V batteries. Brand may vary. No fancy package, just fresh batteries, cheap. No limit.
Alkaline 9V Battery (Cat. #A787) …................. $1.95
add to cart



What is the real difference between a single axis and a triple axis gaussmeter?

Because magnetic fields are oriented in space, a sensor will only detect the field properly if it is aligned with the field. A single axis meter has only one sensor in it. Therefore to get a correct reading with this type of meter, you must slowly rotate the meter until you find the maximum reading. This will be the correct reading. If the meter is turned 90° from the maximum reading, it will read nearly zero. It is easy to understand how it is possible to get a lower than actual reading if the meter is not properly aligned.

A three axis meter has 3 sensors in it, all aligned at right angles to each other. Therefore, this type of meter is always correctly aligned and no rotation is required to get a correct reading. This type of meter takes less time to use but generally costs more that its single axis counterpart. See 3-Axis Digital Gaussmeter and Trifield Meter for examples of 3-axis gaussmeters.

See lots more information on our FAQ page. (Frequently Asked Questions)





Can't decide which meter is right for you?
Click here to go to the handy Meter Selection Guide.

Home Go To Checkout

LessEMF.com
776B Watervliet Shaker Rd      Latham NY 12110-2209      USA
Order Toll Free: (8 8 8) 5 3 7 - 7 3 6 3
International: +1   ( 5 1 8 )   6 0 8 - 6 4 7 9
Fax: +1   ( 3 0 9 )   4 2 2 - 4 3 5 5

Send E-Mail to Less EMF Inc.
lessemf@lessemf.com

home emf
meters
emf
shielding
emf
books
emf
appliances
sale
items
order
form

Copyright 1996-2014, Less EMF Inc.