Choosing a meter can be a simple task, once you decide what you need. Since no one meter can "do it all" the first and most important question you must answer for yourself is...

In a way, you need to know what you are looking for before you can know what type of meter you will use. The best meter for the job will be sensitive to the type of EMF radiation you wish to measure and give you the type of information which is useful to you.

Listed below are some additional questions which will help you refine your decision:

• Do I want to measure magnetic fields? Electric fields? Radiofrequency fields?
  
• What frequencies am I most interested in: DC? 60 Hz? ELF? VLF? Microwave?
  
• How sensitive do I need my meter to be?
  
• How accurate do I need it to be? (higher accuracy = higher price)
  
• Do I prefer analog (best for surveys and readings "on the go") or digital (higher accuracy)?
  
• Do I need three axis, or can I get by with single axis?
  
• What special features do I want: audible signal? Multiple capability? Portability? Cost?
• What am I going to do with the information? Locate "hot spots"? Trace faulty circuits? Present findings to others?
  

The following chart will help you compare the various meter options. Of course, if you still can't decide, call or e-mail our technical staff and we will be happy to assist you.

You can jump to more information about the meters by clicking the name of the meter below.
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AC GAUSSMETERS

Cat. #	Meter Name	Freq. Range (Hz)	Useful Range (mG)	Digital or Analog Readout	No. of Axes	Accuracy/ Sensitivity	Typical Applications
A101	eSmog Scout	20 - 10,000	-	LED & Sound	S	M / M	ac magnetic fields PLUS light flicker
A103	K-2 Deluxe	50 - 20,000	1.5 - 20	LED	S	L / L	powerlines, wiring, appliances & ghost hunting
A111	Single Axis Digital	30 - 400	0.1 - 199.9	D	S	M / M	accurate ELF readings, powerlines, appliances
A121	E.L.F. Zone	20 - 10000	0.25 - 8	LED	S	L / M	Locate "hot spots", paranormal work, very low cost
A130	Dr. Gauss/ GaussMaster	50/60	0 - 10	A	S	M / M	Audible tone and analog readout; great for demonstrating fields to others
A144	ElectroSensor	50/60	1.3 - 30	LED	S	M / M	Very low cost, easy to see in dark
A150	Trifield Meter	50 - 100k	0 - 3.0 0 - 100	A	T	M / M	general purpose survey, highly recommended
A154	Personal EMF Alarm	50 - 100k	0 - 3.0 0 - 100	A	T	M / M	meter and audible alarm for AC magnetic, AC electric, and RF fields
A155	Trifield Ext. Range	5 - 100k	0 - 3.0 0 - 100	A	T	M / M	general surveys, esp. when low frequencies suspected
A153	Switchable 1 & 3 Axis	13Hz - 75kHz	0.01-1999	D	S/T	H / H	high accuracy readings & surveys, distinguishes ELF and VLF
A171N	FW Bell 4180	30 - 2000	0.1 - 599	D	T	H / H	high accuracy readings & surveys, view X,Y,Z and SUM
A194	XYZ Axis EMF Tester	30-300	0.1 - 1999	D	T	M / H	Display each axis reading separately
A1181	Magcheck Sensor	25-3000	.1 mG - 50G	AC Voltage	S	H / H	Probe only, outputs AC voltage, needs DMM
A175	Magnetic Pickup	?	?	AC Voltage	S	? / L	Probe only, outputs AC voltage, needs DMM
A425	Peak/Hold AC Gaussmeter	30-400	0.1 - 200.0	D	S	M / M	output in mG, Peak & Hold features
A459	Pro 1-Axis Gaussmeter	30-300	0.1 - 19,990	D	S	M / M	checks very strong AC magnetic fields, switch between mG and µT, backlit, Max/Min
A477	EMDEX Snap	40 - 1000	0.1 - 1000	D	3	H / H	professional quality gaussmeter, NIST calibration
A480	Digital Combination Meter	16-2000	0.01 - 20.00	D	S	H / H	easy, sensitive, accurate measurements of both Electric and Magnetic fields
A482	Professional Combination Meter	5Hz -100kHz	0.001 - 20.00	D	S	H / H	highly sensitive and accurate for E and M fields, AC & DC outputs
A494	Datalogging 3-Axis GaussMeter w/ PC Interface	30 -2000	0.01 - 1999	D	T	H / H	high sensitivity, 3-axis, Datalogging, and PC Interface
A1100	Commercial AC Magnetic Field Meter	50 or 60	0.01 - 1999	D	S	H / H	narrow bandpass, filters out harmonics
A1160	Bandpass AC GaussMeter	50 or 60	0.1 - 199.9	D	T	H / M	narrow bandpass, filters out harmonics

A = Analog
D = Digital
DMM = attaches to your digital multimeter
LED = Light emitting diode
L, M, H = low, medium, high
S = Single axis
T = Triple axis

DC (& AC/DC) GAUSSMETERS

Cat. #	Meter Name	Freq. Range (Hz)	Useful Range (Gauss)	Digital or Analog Readout	No. of Axes	Accuracy/ Sensitivity	Typical Applications
A112	AC/DC MilliGauss Meter	DC-10kHz	0.1mG-3000mG	D	S	H / H	high sensitivity, measure Earth's field, cargo compliance, and AC fields
A142	Pocket Magnetometer	DC	-20 to +20	A	S	M / M	measure permanent & residual magnetism, other ranges available
A149	DC MilliGauss Meter	DC	0.01mG-2000mG	D	S	H / H	extreme sensitivity, measure Earth's field, cargo compliance
A151	Natural EM Meter	DC	.0025 - 1.00	A	T	M / M	meteorological, geological, & paranormal studies
A451	3-Axis DC Magnetometer	DC	-2.0000 to 2.0000	D	T	H / H	connects to PC, very sensitive, 3-axis
A1100	Hall Effect Gaussmeter	DC	0-2 0-20 0-200 0-2000	D	S	H / M	measure intermediate to strong DC fields, DCV output
A1132	DC/AC Gaussmeter	DC-1kHz	100mG - 30kG	D	S	H / H	wide frequency range, measure intermediate to strong DC fields, DCV output
A2100	KiloGauss Meter	DC	0-20 0-200 0-2000 0-20,000	D	S	H / L	measure strong DC fields, DCV output
A3100	Geomagnetometer	DC-20Hz	0-.002 0-.020 0-.200 0-2.000	D	S	H / H	measure Earth's field & weak DC fields, DCV output
A1120	DC Viewer Card	DC	-	visual	S	L / L	show pattern of field from permanent magnets

A = Analog
D = Digital
DMM = attaches to your digital multimeter
LED = Light emitting diode
L, M, H = low, medium, high
S = Single axis
T = Triple axis

ELECTRIC FIELD METERS

Cat. #	Meter Name	Freq. Range (Hz)	Useful Range (kV/m)	Digital or Analog Readout	No. of Axes	Accuracy/ Sensitivity	Typical Applications
A150	Trifield Meter	50 - 100k	0 - 1	A	T	M / M	general purpose surveys
A151	Natural EM Meter	DC	0 - 1.000	A	T	M / H	geological, paranormal & meteorological, studies
A152	AC Electric Field Meter	5 - 2000	.02 - .30 .100 - 10	A	S	M / M	test fields from power lines, appliances, and shielding effectiveness
A152-D	Digital Electric Field Meter	40 - 50k	1 - 19,999 (V/m)	D	S	H / H	extremely easy to use, reliable
A155	Trifield Extended Range	5 - 100k	0 - 1.000	A	T	M / H	better for low frequencies
A182	E-Field Sensor Accessory	60	0 - 100	DMM	S	L / H	low cost, relative comparisons
A183N	Body Voltage Meter	40 - 500	1 - 2000mV	D	N/A	H / H	check voltage induced in body by external fields
A480	Digital Combination Meter	16-2000	1-2000	D	S	H / H	easy, sensitive, accurate measurements of both Electric and Magnetic fields

A = Analog
D = Digital
DMM = attaches to your digital multimeter
LED = Light emitting diode
L, M, H = low, medium, high
S = Single axis
T = Triple axis

RADIOFREQUENCY & MICROWAVE METERS

Cat. #	Meter Name	Freq. Range (MHz)	Useful Range (mW/cm˛)	Digital or Analog Readout	No. of Axes	Accuracy/ Sensitivity	Typical Applications
A118	RF Detector Probe	0.1 - 1000	0 - 100	D	S	M / M	circuit board RF detection & low cost field strength detection
A119	Broadcast Frequency Counter	30 - 2800	relative	D	S	M / M	gives frequency information of predominant signal
A129	Digi-Field	0 - 12 GHz	relative, AD	A	AD	M / H	locate RF hot spots, tune antennas, test shielding
A134	Spectran HF-4060	100 - 6000	10 pW/m˛ - 10 W/m˛	D	1	M / H	gives complete strength and frequency (spectrum) information
A150	Trifield Meter	50 - 3000	.01 - 1.0	A	S	M / H	general surveys
A151	Natural EM Meter	0.1 - 2500	.01 - 1.0	A	S	M / H	general surveys, meteorological & paranormal studies
A155	Trifield Extended Range	.100 - 2000	.026 - 260	A	S	M / M	gen. surveys, esp. when low frequencies involved
A158	MicroAlert	0.5-3000	0.001-1	audio	S	L / H	warns about RF radiation, MW oven leakage, protect pacemakers
A164	ScanProbe	2 - 2000	-10dBm	LED/audio	S	H / H	Near Field RF detection. Cell Phone shielding, EMI
A177	Ultrasensitive Wideband RF Meter	1 - 2500	relative	A	S	- / M	Simple RF meter for locating hot spots
A412	Mini RF Alarm	50 - 3000	-	LED & Sound	2	L / L	Useful for locating RF hotspots
A431	Powerline Noise Finder	135	70 dB	A	2	M / M	Direction finder for RF noise from arcing powerlines, transformers, loose connections etc.
A437	Basic RF Meter	100 - 3000	0.16 nW/cm˛ - 58 µW/cm˛	D	S	M / H	good value, easy-to-use, hi sensitivity RF meter
A455	Improved Cell Phone Detector	50 - 6000	relative	LED & Audio	S	- / H	detect unwanted cell phone or wireless use
A481	High Frequency Meter	800 - 2500	0.01 – 199.9 nW/cm˛	D & Audio	S	H / H	reliable, professional RF meter
A483	Extended Range High Frequency Meter	27 - 3300	0.01 – 199.9 nW/cm˛	D & Audio	S & omni	H / H	reliable, professional RF meter, wide frequency
A489	8 GHz RF Meter	10 - 8000	0.1 nW/cm˛ – 3 mW/cm˛	D	omni	H / H	reliable, extra wide frequency
A495	3-Axis RF Meter	50 - 3500	0.4 nW/cm˛ – 30 µW/cm˛	D	omni	M / H	reliable, ultra-low cost, wide frequency

A = Analog
AD = antenna dependent
D = Digital
LED = Light emitting diode
L, M, H = low, medium, high
S = Single axis
T = Triple axis

OTHER TYPES OF METERS

Cat. #	Meter Name	Digital or Analog Readout	Unique Features	Typical Applications
A147	Motion Detector	LED/Audio	easy, portable, and low cost	great for security and paranormal work
A156	Air Ion Counter	D	counts both (+) and (-) ions	meteorological, ESD, static charges, check ionizer effectiveness
A179	Deluxe DMM	D	high quality, low cost	use with probes to measure temperature, magnetic & electric fields, body voltage
A188	Electrostatic Locator	A	high accuracy, close range	measure static electricity
A189	Surface Resistivity Meter	LED	103 - 1012 ohm/sq	test any surface for conductivity
A192	DMM with PC Interface	D	upload data to your PC	use with probes to measure temperature, magnetic & electric fields, body voltage
A193	Infra-Red Thermometer	D	self contained, hand held, laser pointer	remote high accuracy temperature measurement: ovens, freezers, motors, paranormal studies
A196	Monitor 4	A	self contained, hand held	measure radioactivity in rocks, soil, jewelry, dental work, water, air, etc.
A196-I	Inspector	D	self contained, hand held	high sensitivity radioactivity measurements, optional PC interface
A198	UV Meter Card	color change	credit card sized	measure harmful UV radiation BEFORE sunburn
A405	UV/B Sunburn Meter	LCD	UV Index 0-100, also time and sunburn alarm	helps prevent sunburn during outdoor activities
A415	Mini-IR Thermometer	LCD	very small, also measures local (ambient) temp	handy, low cost, dual purpose temperature tool
A440	Infra-Scan	D	self contained, palm sized, very low cost	remote temperature measurement: ovens, freezers, motors, paranormal studies
A406	UV + Thermometer Card	D	UV, temperature	measure harmful UV radiation BEFORE sunburn
A452	Socket Tester	LED	simple, self contained	check proper outlet wiring and safe grounding
A475	PaceAlert™	LED/Audio	Alarms to the presence of strong (M, E, RF) electromagnetic fields	designed for pacemaker and implantable defibrillator wearers

A = Analog
D = Digital
LED = Light emitting diode

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