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Trifield Meter

Trifield Flat Frequency Meter

Ex100 Version

The TriField Meter is the most economical combination of magnetic, electric, and analog radio/microwave detection in one package. This meter combines all these unique features with fast, reliable measurements of electromagnetic pollution: Trifield Meter

Continuous sampling needle gauge readout;
3-axis magnetic sensitivity;
Two separate scales for magnetic field readings;
Hand-held portability and simplicity.

The TriField Meter will accurately measure EMF pollution from these "hot spots" in your home, office, or work environment so you can take steps for "prudent avoidance":

  • poorly grounded wiring
  • microwave oven doors
  • dimmer switches
  • strong analog RF transmitters (such as leakage from a microwave oven, and not for digital signals)
  • automobiles
  • TV's & computers
  • other electronic equipment

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? Lowest cost 3-axis meter, lightning fast response needle gauge, 3 meters in one

Have peace of mind and confidence in knowing where this body penetrating pollution is coming from, and how powerful it is, so you can protect yourself and loved ones. Instruction booklet and 9V battery included. RF capability is not for digital signals. One year limited warranty. Made in U.S.A.

Made in USA Trifield Flat Frequency Response Meter (Cat. # A150-F).....$149.95 add to cart



TRIFIELD™ METER: Frequency Weighted

This modified version of the Trifield Flat Meter has all the same specifications with this one important difference: magnetic field response is frequency weighted. Frequency weighting gives a better indication of the biological impact of the field. It is important to note that readout is frequency weighted from 30 to 500 Hz, and calibrated at 50 or 60 Hz. What this means is that a 2 mG magnetic field at 60 Hz will read "2" on the meter, but 2 mG at 120 Hz will read "4". From 500 Hz to 1000 Hz, the response is flat ±20%. Above 1000Hz, sensitivity decreases with increasing frequency.


Click to read more about TriField Flat verses Weighted Frequency Response (.pdf).

Made in USA TRIFIELD METER 60 Hz calibration (Cat. #A150-60).....$149.95 add to cart
TRIFIELD METER 50 Hz calibration (Cat. #A150-50).....$149.95 add to cart

Specify 50 or 60 Hz calibration when ordering




Trifield Extended Range Meter

Trifield "Extended Range, Broadband" Meter

This modified version of the frequency weighted Trifield Meter has the following advantages:

• The magnetic field sensor has enhanced sensitivity to frequencies below 50Hz
(for example, sensitivity at 5 Hz is 33 times greater than the regular Trifield meter)

• The RF sensor is frequency-flat over the extended range of 100 kHz - 2.5 GHz.
This fills the gap of 100 kHz - 50 MHz missed by the regular Trifield meter
(However sensitivity is shifted to a range of 0.026 - 260 mW/cm²) It is useful for strong analog RF signals such as leakage from a microwave oven, and not for digital signals


SPECIFICATIONS
Minimum
Sensitivity
Scale
Accuracy
Frequency Range
Magnetic 1:
1 mG
0-100 mG
± 20%
5 Hz - 100 kHz
Magnetic 2:
0.2 mG
0-3 mG
± 20%
5 Hz - 100 kHz
Electric:
10 V/m
0-1000 V/m
± 30%
5 Hz - 100 kHz
RF/Microwave:
0.01 kV/m
0-1 kV/m
Factor of 2
at 2 GHz
100 kHz - 2.5 GHz
What is unique about this meter? Useful for ELF frequencies below 50 Hz, and RF below 50 MHz, good for very strong RF signals

With these extended ranges, you can detect slow moving static electric and magnetic fields, very weak AC electric fields from wall switches and concealed wiring, and lots of other low frequency EMF sources you might have missed, as well as fine tuning your shielding efforts!

Made in USA Trifield Extended Range Broadband Meter (Cat. #A155)........$189.95 add to cart



MicroTesla Meter

Versatile and Great Value MicroTesla Meter

When your main concern is price, this meter fits the bill. Large backlit display is easy on the eyes and displays both electric field and magnetic field readings simultaneously. Makes quick work of checking for emissions from powerlines, household wiring, appliances, and anywhere that electricity is flowing. But there’s more: in addition to the field strength number, you get a visual and sound indication (alarm) when the field detected exceeds the pre-set “danger” threshold of 40V/m or 0.4μT (4 mG). This is a very handy feature when sweeping a large area or monitoring emissions over long periods. And you can’t beat the price!

Additional features:

  • Single Axis
  • Simultaneous readout of electric field in V/m and magnetic field in μT
  • Range 1-1999 V/m, 0.01-19.99 μT (=1-1999mG)
  • Preset audio alarms: 40V/m or 0.4μT (=4 mG)
  • HOLD feature locks display for easier reading
  • Switchable Average vs. Peak modes
  • Backlight
  • No accuracy specification
  • Covers ELF and VLF frequencies
  • Modestly priced. Very simple to operate
  • Display and instructions in English. Requires one 9V battery
What is unique about this meter? magnetic and electric field in one meter, super low cost, backlite, alarm

MicroTesla Meter (Cat. #A114) ........... $49.95 add to cart



MAG-TEMP Mel-8704R

Simultaneous EMF and Temperature Readout with Illuminated RED Display Mag-Temp

When you need to measure EMF and temperature, you need one hand operation that gives you a wealth of information, and lots of options.

Mag-Temp offers both single axis AC Magnetic field measurement and real time air temperature readings. Display illumination is RED, so it doesn’t saturate your eyes when working in in dark areas. Red flashlight is built-in. Readout in mG or µT, °F or °C. High resolution and fast response. Basic 1 inch K-Type thermocouple is included and it can be used with a variety of commercially available thermocouple probes for extended temperature ranges. Solves the age old equipment problem of "How do I hold all this stuff?"! DAS Logo

Additional features:

  • Max/Min/Hold
  • EMF Bandwidth: 30-300 Hz
  • 3 EMF Ranges: 200 mG (0.1 mG resolution), 2000 mG, 20,000 mG
  • Temp: -40 to 482 °F (0.1° resolution)
  • Backlight can be on or off
  • 9V battery powered, or AC to 9V adapter (not included)
What is unique about this meter? magnetic and temperature in one meter, good for very strong fields, backlite

Mag-Temp Meter (Cat. #A105R) ............... $109.90 add to cart



Tri-Mode High + Low Frequency Meter

Three Devices in One Tri-Mode High + Low Frequency Meter

For low cost and versatility, you can’t beat this device. It measures both types of low frequency EMF (electric and magnetic fields) plus high frequency radiowaves (microwaves). Covers a very wide frequency range with good sensitivity. Antennas are internal so there is nothing to lose or break off. There are 2 ranges for magnetic, permitting the user to check for both very weak and very strong fields (up to 600 mG). What is unique about this meter is that it also shows the frequency of the predominant RF signal (up to 2.7 GHz).

  • RF: 100MHz to 8GHz (0.5uW/m2 to 1.8W/m2 = 14mV/m to 26.2V/m)
  • Magnetic1: 50Hz to 10KHz (0.1uT to 60uT) / (1mG to 600mG)
  • Magnetic2: 50Hz to 1KHz (0.01uT to 1uT) / (0.1mG to 10mG)
  • Electric: 50Hz to 50KHz (10V/m to 1000V/m)
  • RF Frequency display: 100MHz to 2.7GHz (-35dBm or higher required)

Fits easily into a pocket or purse for easy travel. Includes sound/alarm and backlight, either of which can be turned off. Uses 1 standard 9V battery. Model ED88T.

What is unique about this meter? 3 in one meter, low cost, backlite, alarm

Tri-Mode Meter (Cat. #A438) ............. $189.95 add to cart



ESI 24 EMF MONITOR

Detects & Displays All 3 EMF Types at Once


The very unique ESI 24 checks for all 3 types of EMF: magnetic fields, electric fields, and radiowaves/microwaves simultaneously. Easy to interpret RED / YELLOW / GREEN LED lights indicate EMF level and are supported by a loudspeaker that gives an audible indication of field strengths. Sound frequency/intensity changes with increasing field strengths. Sound can be turned off if you prefer. Allows for quick and easy localization of the sources of different types of EMF. The display shows 5 different levels, ranging from extremely low (i.e. no significant radiation exposure) to too strong for prolonged exposure and distinguishes how much for each radiation type. Super easy and super sensitive.

Frequency RangeAxis
Magnetic field:16Hz – 3kHz3
Electric Field:16Hz – 3kHz1
Radiowaves:50MHz – 8GHz3
Includes Enhanced RF Mode in which only RF is measured using all 15 LEDs. Gives greater range and greater resolution. Sources detected by ESI 24: cell phone towers, cordless phones, wireless LAN, Wi-Fi systems, power lines, electrical installations and appliances, baby monitors and alarms, microwave ovens, cell phones, etc.

ESI 24 EMF MONITOR
LEDs:GreenGreen/YellowYellowYellow/RedRed
Magnetic field (nT)<2080-120160-200300-400>1000
Electric Field (V/m)<615-2025-3035-40>50
Radiowaves (µW/m²)
2 – 3900 depending on frequency
RF Enhanced Mode (µW/m²)
.06 – 5900 depending on frequency

Operates for about 10 hours on one 9V battery (included). 2 year warranty.

ESI 24 EMF Monitor (Cat. #A498) .................................. $280.00 add to cart



RF/GAUSS FIELD METER

RF/Gauss Field Meter Detect Both EMF Hazards for One Low Price

Want measure both AC magnetic field and radiofrequency (microwave) radiation? Need more information than just LEDs or sound? Working on a limited budget? This unit is the first to combine these capabilities with a digital readout at low cost!

RF valid for both analog (microwave oven, AM/FM) and digital (GSM, TDMA, CDMA, PCS, Wi-Fi) signals and can distinguish between them. So easy to use, just choose RF or Magnetic, then point and read! Even includes a HOLD button to freeze the meter reading. Magnetic sensor is 1 axis, and RF is directional.

    Display screen includes:
  • RF Signal displayed as mW/m², V/m, or dBm
  • Both mG and µT Magnetic Field units display simultaneously
  • Horizontal bar “power level display” with 12 5dBm segments
  • Moving bargraph (histogram) showing signal changes over the last 30 readings
  • 8 segment LED bar (green/yellow/red) with corresponding power indication
  • Backlite which can be turned on/off

RF modeGauss meter mode, 2 ranges
Frequency range:100 MHz to 8.0 GHz50 Hz to 10 KHz useful range
Sensitivity:0.5 µW/m² to 1.8 W/m²0.1 to 10 mG1 to 600 mG
What is unique about this meter? magnetic and RF in one meter, digital readout, high sensitivity

Check your cell phones, computers, wiring, powerlines and just about any electrical/electronic device.
Requires one 9V battery. Model ED-78s.

RF/Gauss Field Meter (Cat. #A439s) ...... $139.95 add to cart

8 Intensity Level Increments
On the LED bar display
RF
Magnetic
-5 dBm = 180 mW/m²30+ microT 
-10 dBm = 58 mW/m²20 microT 
-15 dBm = 18 mW/m²10 microT 
-20 dBm = 5.8 mW/m²5 microT 
-25 dBm = 1.8 mW/m²2 microT 
-30 dBm = 0.58 mW/m²0.5 microT 
-35 dBm = 0.18 mW/m²0.2 microT 
-40 dBm = 0.06 mW/m²<0.2 microT 



Digital Combination Meter

DIGITAL COMBINATION METER

1-Axis Electric and Magnetic Field measurements

The Digital Combination Meter boasts several distinct advantages for a meter in this price range:

  • Wide frequency response: very flat (1 dB) from 16 Hz to 2000 Hz; useful from 5 Hz to 7000 Hz (3 dB)
  • Tremendous Sensitivity and Range:
    - Magnetic: 1-2000 nT (0.01-20.00 mG);
    - Electric: 1-2000 V/m
  • Accuracy: ±2% ±20 digits at 50/60 Hz
  • Cool audio tone which resembles a Geiger counter
  • Simple to operate, easy to read.

YouTube video demonstrating this meter:
Electric Field
Magnetic Field
Frequency range:16 - 2000 Hz (1 dB); 5 Hz to 7000 Hz (3 dB)
Range:1-2000 V/m1-2000 nT (0.01-20.00 mG)
Sensitivity:1 V/m1 nT (0.01 mG)
Accuracy±2% ±20 digits at 50/60 Hz
What is unique about this meter? digital readout E & M, high accuracy & sensitivity, sound

Perfect for home, student, or researcher.
Uses a standard 9V battery, included. Instructions in German and English. 2 year warranty. Model ME3030B.

Digital Combination Meter (Cat. #A480) …… $149.00 add to cart


Extended Frequency Digital Combination Meter ME3830B

EXTENDED FREQUENCY DIGITAL COMBINATION METER

Covers 16 Hz to 100kHz

All the same features as the Digital Comnination Meter above, but covering a wider frequency range. (Model ME3830B)

Extended Frequency Digital Combination Meter (Cat. #A486) …… $228.00 add to cart



PROFESSIONAL COMBINATION METER

Professional Combination Meter

Professional Quality and Versatility

This meters meets all TCO requirements for AC Electric and Magnetic Field measurements. Tremendous sensitivity and highly linear over 4 selectable frequency ranges which allows for determination of ELF compared to VLF readings, ultra-low frequencies down to 5 Hz, and a special filter for 16 Hz typically associated with electric trains. Includes both an AC voltage output (to analyze frequency information or use a headset to hear the corresponding audio frequencies) and a DC output (for long term monitoring with a recording device), Geiger counter style audio output, auto power off, and integrated battery check.

Single axis
3½ digit LCD display. Power consumption: 15-20 mA.
Includes 8 hour rechargeable 9V battery, AC power supply/charger, and ground cord.
Manual in English and German. 2 year warranty. Model ME3851A.


Spec:
AC Magnetic
AC Electric
Range 1:
0-200 nT (2 mG)
0-200 V/m
Resolution 1:
0.1 nT (0.001 mG)
0.1 V/m
Range 2:
0-2000 nT (20 mG)
0-2000 V/m
Resolution 2:
1 nT (0.01 mG)
1 V/m
Accuracy:
±2%
±2%
What is unique about this meter?
digital readout E & M, extremely high accuracy & sensitivity, toggle frequency range, AC/DC voltage output, sound

    Frequency range choices:
  • 5 Hz – 100 kHz (full bandwidth)
  • 16 Hz (electric trains)
  • 50 Hz – 100 kHz (ELF + VLF)
  • 2 kHz – 100 kHz (VLF only)

Professional Combination Meter (Cat. #A482) ........................ $397.00 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 (sold seperately) 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

Bonus: For a limited time, order the DC/AC Gaussmeter and get a free 4 inch (0.5 inch ID) Mini Zero Gauss Chamber.
Click here to add this item: Free Mini Zero Gauss Chamber 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) ......... $395.00 add to cart



PACE-ALERT™

PACE-ALERT™

Peace of Mind for Pacemaker Wearers

Pacemakers and implantable defibrillators are vulnerable to strong electromagnetic fields. Manufacturers of these devices have set EMF exposure limits, but how is the user to know if his work or home environment is safe?

PaceAlert is the first and only meter/alarm designed specifically with pacemaker safety in mind. Simply turn the unit on and it will warn with LED lights and audible alarm if it encounters EMF near the limits for proper and safe operation of implanted devices. PaceAlert monitors AC magnetic fields, AC electric fields, and radiofrequencies simultaneously. Common sources of strong fields include microwave ovens, power tools, hair dryers, vacuum cleaners, electric ranges and toaster ovens, electric circuit boxes, welding equipment, etc.

    Alarm thresholds:
  • 4 kV/m for electric field at 50/60 Hz
  • 1.5 Gauss magnetic field at 50/60 Hz
  • 100 V/m RF from 500 kHz – 6 GHz
no Pacemakers

No adjustments needed, no complicated interpretations to make. If you hear the alarm, you are too close! LEDs will indicate type of EMF (electric, magnetic, or RF). Convenient size fits in pocket or purse. Or it can be worn as a necklace or on belt clip. Gets about 20 hours on standard 9V alkaline battery, 9 hours with rechargeable. Low battery indicator. One year warranty. Annual re-calibration available.

PaceAlert (Cat. #A475) ............... $199.95 add to cart



PACE-ALERT™ Mini

PACE-ALERT™ Mini

Completely Portable


Need something smaller? This mini version weighs only 0.7 ounces and is about the size of a pack of gum. Easy to keep in a purse or hang on a keychain. Monitors AC magnetic field (3 axis) and RF. Perfect when you are on the go.

PaceAlert Mini (Cat. #A906) ............... $125.00 add to cart


In The News:

A research team at the Academic Medical Center at the University of Amsterdam examined the effects of GPRS and UMTS signals on critical care equipment such as ventilators and pacemakers. There were almost fifty incidents of EMI impacting the devices, and 75 percent of these could be characterized as significant or hazardous. Problems observed - a total switch off and restart of mechanical ventilators, complete cessation with no alarm sounded of syringe pumps, and incorrect pulsing of an internal pacemaker. Second-generation phones based on GPRS technology generated the most serious instances of EMI—sometimes from as far away as three meters. Read more



Personal EMF Alarm

PERSONAL EMF ALARM

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

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.

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



EMF HUNTER

EMF HUNTER

EMF Meter, Microwave & Temperature in One!

Versatile new meter for detecting cell phone radiation, power line EMF, as well as paranormal research. Combines AC magnetic field detection, microwave sensor, and temperature in a very compact design. Easy to read LED indication and dramatic sound.

For cell phones, microwave ovens, and other high frequency appliances:
500 kHz to 2.4 GHz
0.01 to 0.30 mW/cm² in 10 color-coded increments:
- Green light (safe): Less than 0.02 mW/cm²
- Yellow light (caution): 0.02 to 0.1 mW/cm²
- Red light (warning): higher than 0.1 mW/cm²

For power lines, TVs, computers, AC alarm clocks, motors and other electric appliances:
30 Hz to 5 kHz
1 to 10 mG in 10 color-coded increments:
- Green light (safe): Less than 2.5 mG
- Yellow light (caution): 2.5 to 8 mG
- Red light (warning): higher than 8 mG

Temperature: External temperature probe on 6 foot cable (sold separately).
32 – 102°F (0-40°C) in 5 increments. Audible warning at 99°F

Power: 9V battery (not included) good for continuous use for more than 30 hours. One-year warranty. Very unique!

What is unique about this meter? magnetic field and temperature in very simple format

EMF Hunter (meter only) (Cat. #A473) ……… $79.95 add to cart

Temperature Probe (Cat. #A473-T) ................... $10.00 add to cart



Deluxe Instrument Case

Deluxe Instrument Case

DELUXE INSTRUMENT CASE

Perfect for meters, instruments or cameras. Fits plenty of stuff in a compact space. This rugged case features aluminum trim, riveted corners, lock and keys, carry handle and metal hinges. Black hard sidewalls. Black padded inside walls but no foam. 12'' x 10'' x 4''.

You can also use it to store:
important papers seeds toiletries knitting / sewing supplies
crayons / chalk photos coupons medicines / vitamins / homeopathy
hand gun / ammo tools collectibles art / craft supplies
cash / valuables diary love letters small toys, Legos, puzzles
business cards lunch receipts baseball cards

Deluxe Instrument Case (Cat. #A711) .............................................. $18.95 add to cart

Deluxe Instrument Case

Deluxe Instrument Case



The following items are available from other websites. We provide this information as a courtesy. These websites have no affiliation with Less EMF Inc. Proceed at your own risk:


EMF Meter
with Formaldehyde, Temperature,
and Humidity Measurement
plus PC Connection

Tenmars TM-190
Multi-Field EMF Meter

Gigahertz-Solutions ME3840B
Semi professional meter
for low frequency

Gigahertz-Solutions MK20:
HF35C and ME3830B Meters

Gigahertz-Solutions MK30:
HF38B and ME3840B Meters

Gigahertz-Solutions MK10:
HF32D and ME3030B Meters



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

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