An improved version of the standard TriField Meter. This meter has identical specifications to the TriField Meter, except that the Electric Field detection capability has 100 times more sensitivity to AC electric fields for weaker Electric Field detection (typical of house wiring, etc.) This meter is useful for tracing the position of wires inside walls, and for determining the effectiveness of electric field shielding equipment. The indicator is rapid response (< 1/2 second) and the electric and magnetic section are unaltered by DC fields or AC below 30 Hz. With these EXTENDED Ranges, you can detect SLOW moving Static Electric and Magnetic Fields, concealed RF Transmitters, Cellular Phone Radiation, VERY WEAK AC. Electric Fields from Wall Switches and Concealed Wiring, and lots of other EMF sources you might have MISSED, as well as
FINE tuning your Shielding Efforts! The TriField detects more frequencies than most other gaussmeters. It detects both the "ELF" frequencies (from power lines, wiring, lights, appliances) and the higher "VLF" frequencies (from TVs, computers, fluorescent lights). All three major kinds of EMFs (magnetic fields, electric fields and radio/microwave fields) can be detected with one simple meter. The TriField 100XE is unique in that it can measure magnetic fields, electric fields, and radio/microwave fields. Previously you would require three different test meters, one for each field measurement. Detects an unusually wide range of frequencies, including those from televisions, computers, adding machines, electric alarm clocks, and fluorescent lights..nearly all man made appliances! This meter is an improved / more recent model of the Standard TriField Meter and has the following advantages: TriField 100 XE Meter - Extended Range version of the TriField Meter - Features mega expansion of Electric Field detection capability to cover Single-Axis Measurements from 5 V/m to 1000 V/m (volts per meter) which is 100x the Electric Field detection range, at 60 Hz, of the standard TriField Meter! - Minimum Electric Field measurement resolution is 5 V/m (available as either a 50 Hz or 60 Hz model) This instrument is a 3-Axis ( triple-axis ) meter. It has three built-in sensors which measure the fields in all possible directions and calculate the total field strength for you, when the control knob is set on MAGNETIC. The Trifield 100XE Meter features 3-Axis measurement (three dimensional) & detection of magnetic fields and high sensitivity, single-axis measurement of electric fields, which allows QUICK scanning of offices, homes, hallways, powerlines and vehicles, etc. The TriField 100XE measures low-level electric fields - The "100XE" designation symbolizes that the electric field setting on the meter is capable of measuring electric fields 100 times, hence "100x", more sensitivity (weaker electric field radiation) than the same setting on the original / standard version of the TriField Meter. AlphaLab, Inc. has manufactured the original TriField Meter for over 18 years, though it is still the only EMF meter which combines magnetic, electric and radio / microwave detectors in one handheld, compact, portable, time saving, easy to use instrument, allowing fast & accurate coverage of the entire nonionizing electromagnetic spectrum! Independently measures / detects electric field as well as magnetic fields and is properly scaled to indicate the full magnitude of currents produced inside a conductive body via it's frequency weighted measurement capabilities. Continuous sampling analog display / readout (non-digital, for a Digital display meter, click on the AC Gaussmeter button on the mainpage of this website) Detects either frequency-weighted magnetic fields (two separate scales) or frequency-weighted electric fields in the ELF and VLF range. It has significant sensitivity at 100,000 Hz, well past the 17,000 Hz horiontal scan of video displays. Magnetic and Electric settings measure TRUE magnitude (RMS) a feature usually only found on very expensive meters. Shipped directly from the manufacturing facility at AlphaLab, Inc. - Located in Salt Lake City, Utah, U.S.A. One-Year limited warranty covers parts and labor - AlphaLab prides itself on it's superior quality control, so with reasonable care not to drop the meter on hard surfaces, immerse it in water, expose i to extremes in temperature for extended periods of time, the meter should continue to operate for many years beyond the warranty period - Abusing the meter in any way voids the warranty. A 50 Hz Version of the TriField 100XE Meter is available for the Special Internet Sale Price of $129.99, plus shipping charges - The electrical wiring / output voltage of non-US countries may require a 50 Hz TriField model for simpler measurements. A new Flat Frequency response version (instead of linear sensitivity increase) of the TriField 100XE Meter is also available for the same price. SPECIFICATIONS: MAGNETIC - Scale: 0 to 100 mG (milligauss) - Minimum Sensitivity = 1 mG - Accuracy: + or - 20% - Frequency Range: 50 Hz to 100 kHz MAGNETIC / EXPANDED SENSITIVITY SETTING - Scale: 0 to 3 mG - Minimum Sensitivity = .2 mG - Accuracy: + or - 20% - Frequency Range: 50 Hz to 100 kHz ELECTRIC - Scale: 0 to 1000 V / m (Volts per Meter) at 60 Hz with resolution of 5 V / m - Minimum Sensitivity = 5 V / m - Accuracy: + or - 30% - Frequency Range: 50 Hz to 2 kHz RADIO / MICROWAVE - Scale: 0 to 1 mW / cm2 (milliwatts per centimeter squared) - Minimum Sensitivity = .01 mW/cm2 - Accuracy: -50% or +100% due to reflections off the room and / or user - 50 MHz to 3 GHz - At this setting, the meter is sensitive from 50 MHz to 3 Ghz and is calibrated at home microwave oven frequency (2 GHz) At 60 Hz, Magnetic and Electric field settings are respectively 0-100 milligauss and 5 V/m to1000 V/m. For frequencies above 1000Hz, the magnetic and electric sensitivities of the meter slowly decrease with increasing frequency, falling to near zero near 100 KHz, though with some residual sensitivity up to 100 MHz. In theory, the body's sensitivity to fields should begin to decrease at frequencies above about 500 Hz. Accuracy is at +/- 20% of scale reading for the "MAGNETIC" setting, and +/- 30% for the "ELECTRIC" setting (RMS @ 60 Hz) - (Note: An electric technician will tell you this accuracy is a "liveable" variation for nearly all common applications.) It is important to note that the magnetic and electric field settings of this meter are frequency weighted from 30 to 500 Hz, and calibrated at 60 Hz (a 50 Hz calibrated unit is available as a special order). 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. This Meter will respond to a 1 mG. Magnetic Field, or a 1 V/m Electric Field, at various Frequencies. Measures RF/Microwave Fields: emitted from cordless and cellular phones, radio and TV towers, microwave ovens, and wireless systems. Sensitivity is from 0.01 to 1.0 MilliWatt per square centimeter (mW/cm2). Frequency response is 50 MHz to 3 GHz. Calibrated for accuracy at 2 GHz (microwave oven frequency). Accuracy is -50% to +100% due to the unpredictable effect of reflections off the room and user. OPTIONAL CUSTOM FEATURES MENU: OUTPUT JACK / Analog Plug Option - Enables analog readout capability - Allows interfacing the meter to voltmeters, computers, or any device capable of interpreting an analog output. Maximum voltage is approximately 300 mV and the output impedance is 10 KOHM - An Analog Digital Card (available at computer stores) is a necessary item for meter / computer linkage via the output jack - Available for an additional $9.50 USD
TONE ALARM - Adjustable volume tone alarm - Can be switched off or set anywhere between low and high volumes and used as an "Alarm" feature to warn the user of an existing exposure to a field - Add $60.00 USD AC ADAPTER with Connector - Allows one to plug in the meter as an alternate power supply / source to the 9-Volt battery - Add $25.00 USD (Customers located outside of North America inquire for Connector only rates, since Adapters for your country are not available in the US) - Shipping dimensional weight & cost are increased with the addition of this feature. RED LEDs Option - 2 red LEDs installed on the meter face for simple nightime readings when utilizing a flashlight for illumination is inconvenient - Available for an additional $55.00 (USD) ON/OFF Switch for LEDs Option - The LED "backlighting" can be switched on or off while meter is set to the ON position - This custom feature is available for an additional $9.50 (USD) UNIDIRECTIONAL SWITCH OPTION - Available for an additional $35.00 (USD) - Narrows the meter's three dimensional (3-axis) detection capability down to single axis to isolate vertical magnitude sources. TRIFIELD 100XE FLAT FREQUENCY METER - A Non-Frequency Weighted Version of the TriField Meter is available for the same Special Internet Sale Price of $129.99, plus shipping charges. This modified version of the standard Trifield 100XE Meter has all the same specifications as the original meter, with the one significant difference being magnetic field response is NOT frequency weighted, and thus there is no need to specify 50 or 60 Hz calibration.
UNIQUE ADVANTAGES & FEATURES OF THE TRIFIELD 100 XE - EXTENDED ELECTRIC RANGE METER
MAGNETIC: 0 - 100 milligauss range (at 60 Hz)
0 - 3 milligauss range (at 60 Hz)ELECTRIC: 0 - 1000 V/m = 1 kV/m range (at 50 Hz or 60 Hz) RADIO / MICROWAVE: 0 - 1 mW/cm2 (at 3 Ghz)
The electric and magnetic settings measure true magnitude, a feature usually found only in more expensive meters. The device is properly scaled to indicate the full magnitude of currents produced by each type of field inside the human body.
Most homes and offices have hot spots with strong artificial electro-magnetic fields, where chronic exposure may cause mental or physical problems. Even the EPA names these fields as suspected carcinogens.*
The Trifield meter has three separate sensors allowing independent measurement of magnetic fields, electric fields and RF or radio / microwave fields. It can help you detect defective equipment, determine safer distances for operating equipment and test better shields around your equipment.
ALPHALAB INC.'S TRIFIELD METER is the Most versatile meter priced under $1,000. It comes ready-to-use with battery, instructions and a limited one-year warranty.
Depending on the position of the knob, the meter detects either frequency-weighted magnetic fields (two separate scales) or frequency-weighted electric fields in the ELF and VLF range. The device has significant sensitivity at 100,000 Hz, well past the 17,000 Hz horizontal scan of video displays. The radio / microwave setting can detect up to three billion Hz (3 Ghz), which lets you gauge radio-wave power, CB and cellular phone equipment, as well as many types of radars.
If you hold the meter in the center of a room and tip it to various angles, the magnetic reading will stay approximately the same regardless of which way you tip or rotate it. The electric reading is similar, although the presence of your body alters the actual electric field, so readings will vary more. The radio / microwave setting reads the full power of radiowaves when the meter is pointed toward the source.
Most of the meters priced below $500.00 read only low-frequency magnetic fields and only in one direction (not true magnitude). The magnetic section of the Trifield meter has three field-detecting coils pointing in the X, Y, and Z directions.
A circuit amplifies these signals and gives them the proper frequency-weighting (sensitivity increase linearly from 30 Hz to 500 Hz, with some residual sensitiity up to 100 MHz). A unique network combines the three coil outputs nonlinearly to approximate a true magnitude. The meter is sensitive from 0.2 to 100 milligauss full scale at 60 Hz (or 0.1 to 50 milligauss full scale at 120 Hz, etc.) with a resolution of 0.2 milligauss in the sensitive range. Accuracy is + / - 20% at mid-range. A version with flat frequency response (instead of linear sensitivity increase) is also available for the same price.
* BATTERY - Included 9-Volt battery allows 10 hours of total measurement time - An Alkaline battery allows approximately 50 hours of use.
Email: EMF Meters
THE EMF BOOK ("What you should know about electromagnetic fields, electromagnetic radiation, and your health") by Mark A. Pinksy - Warner Books
"Leak links power lines to cancer" New Scientist - Edward, Rob -
October 7, 1995, p. 4.
"New warnings on EMF/cancer link" Spectrum - Jan-Feb, 1996 -
No. 46, p. 12.
See reviews of the Trifield Meter in:
Microwave News Microwave News covers the health and safety issues related to exposure to electromagnetic radiation.
SCIENCE NEWS ONLINE - "Hold the Phone? Radiation from cell phones hurts rats' brains" by Kendall Morgan - February 22, 2003 - Page 115 in the hard copy version
National Institute of Public Health of Quebec - New Research indicates Melatonin affected by EMFs - October 15, 2001
SCIENCE NEWS: EMFs in Home May Limit Night Hormone - Melatonin - Oct. 6, 2001; Vol. 160, No. 14
Science News Online, Sept. 23, 2000 Cells profilerate in magnetic fields
Business Week Commentary Cell Phones: We Need More Testing
Science News - May 20th, 2000, Vol 157, page 326- Two Studies Offer Some Cell Phone Cautions - A British review of research gave cell phone safety a guarded endorsement while new findings indicate that radiation from older cell phones can trigger a stress response gene, at least in animals.
INDEPENDENT EXPERT GROUP ON MOBILE PHONES - HOME PAGE
Science News Online, Feb 12, 2000, Vol. 17, issue #7 (p. 100) - "Researchers Probe Cell Phone Risk" by Janet Raloff
EMF-LINK Provides substantive information on biological and health effects of electric and magnetic fields.
EMF-LINK EMF Marketplace
POWERWATCH - EMF health issues
National EMR Alliance Network News Mission Statement... We believe that electromagnetic radiation (EMR) is hazardous to life and constitutes a significant threat to the public's health...
Swedish Association for the Electrically & VDT Injured You will find information in English and/or Swedish about electro-sensitivity, formerly known as "Electrical Over-sensitivity" or "Electrical Hypersensitivity" phenomenon. We try to build a reference database for this area of research that you can search or download. Information about the FEB association in Sweden is available in English, as well as addresses to similar associations worldwide. A few more popular articles are also available. We also intend to keep summarized reports on current research.
Alzheimer's Risk Prolonged exposure to electromagnetic fields may increase Alzheimer's risk
Health Protection Agency - Radiation Protection Division
Science News Online (11/29/97): Magnetic fields can diminish drug action
Science News Online (11/20/99): "Powerlines Rewire Avian Hormone"
Science News Online (1/10/98): EMFs' Biological Influences: Electromagnetic fields exert effects on and through hormones by Janet Raloff
Science News Online June 29, 2002, Vol. 161 #26 (p. 404) - "Cell-Phone
Buzz: Contradictory Studies Heat Up Radiation Question" by John
Pickrell
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