MEASURING INSTRUMENTS
APPARATUS & UTILITIES
BOOKS & DVDs
MAKE YOUR WORLD BEAUTIFUL
COMPANY DETAILS & LINKS
Off-Site Links:
Use Browser Back-Button to Return to Natural Energy Works
No State Sales Tax on your Purchases, Ever! Save from 3% to 10%! Find out the levels of exposure in your home environment by accurately measuring the magnitude of the electric and magnetic fields which are present. The TRIFIELD BROADBAND METER is frequency weighted in order to gauge whether the electric current inside the body exceeds danger threshold levels. By reading the true magnitude of a field, the TRIFIELD BROADBAND METER can obtain an accurate reading at any point within a room. The TRIFIELD BROADBAND METER is a more sensitive version of the standard Trifield Meter more widely sold. For a slightly higher price, it detects over a wider range of frequencies.
The TRIFIELD BROADBAND METER combines magnetic, electric, and radio/microwave detectors all in one hand-held instrument, so a large portion of the entire non-ionizing electromagnetic pollution spectrum is covered, all for a truly economical price.
TRIFIELD BROADBAND with 60-cycle Calibration.
Back to Catalog Front Page
Check Your Selections and Checkout
Be sure you have all desired items in your shopping cart.
Measures magnetic, electric, and radio/microwaves
all in one economical, hand-held detector!
Evidence indicates that electric and magnetic fields from high tension wires, CRT computer screens, microwave ovens, and other household appliances increase the risk of certain cancers and other physiological and psychological abnormalities. An average household AC current inside the body of about one billionth of an amp per square centimeter (RMS) seems to be the conservative threshold for biological effects. Based on epidemiological studies, personal exposure to electromagnetic pollution should be avoided if it produces AC currents inside the body higher than the threshold level, of frequencies at or below 1000 cycles per second. An external household appliance magnetic field of 3 milligauss, or an electric field of 2.5 kilovolts/meter will produce approximately that threshold current inside the body.
For North American electric current systems.
Price: $ 179.00
TRIFIELD BROADBAND METER, with 50-cycle Calibration.
For European, African and most (but not all) South American and Asian power systems.
Price: $ 179.00
If you do not live in the USA or Canada, and do not know which frequency is used in your electrical power system, please consult this chart:
Find the "hot spots" in your home, office, or neighborhood: these can include poorly grounded internal wiring, computers, electric blankets and heaters, fluorescent lights and dimmers, high voltage transformers, radio broadcasting transmitters, cellular phones and microwave ovens. By measuring the "hot spots" you can move cribs and beds, improve grounding, or take other steps to avoid long- term exposure to high electromagnetic pollution levels.
Note: This meter does not detect nuclear radiation. For that task, see our RadAlert and Inspector Nuclear Radiation Meters. Also, the Trifield Broadband is useful for making only rough determinations of RF and microwave exposures in the cell phone or cell phone tower frequencies. For that task, you should consider our Cell Phone & Tower RF Radiation Meter. Natural Energy Works also carries several excellent books on these subjects, here.
PRODUCT DESCRIPTION:
The selector knob has six positions: OFF, BATTERY TEST, LOW MAGNETIC field, HIGH MAGNETIC field, ELECTRIC field, and RADIO/MICROWAVE power density. The meter face is analog (needle type).
A needle reading of one-third of full scale corresponds to either 1 milligauss, 3 milligauss, 3 kilovolts/meter, or 0.05 mW/cm2 respectively at the Low Magnetic (0-3 range), High magnetic (0-100 range), electric field, or radio/microwave settings. Long term personal exposure to levels higher than these should be avoided (based on present knowledge of electromagnetic pollution). Full scale deflection of the meter's analog dial registers detection limits at 3 milligauss, 100 milligauss, 100 kilovolts/meter, and 1 mW/cm2.
The meter dial is labeled with a red bar above the one-third reading levels. The Low Magnetic (0-3 range) setting allows very low level magnetic field measurements, and reads 1 milligauss at one-third full scale. The Magnetic and Electric field selectors are calibrated for their respective 60-cycle or 50-cycle powerline frequencies, while the Radio/Microwave detector is calibrated for the peak frequencies of home microwave ovens, at 2 GHz, but will detect radio/microwaves across a frequency range encompassing 100 KHz to 2.5 GHz.
Depending on where the knob is set, the meters detect 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 horizontal scan of video displays. The radio/microwave setting can detect up to around three billion Hz (3 GHz), which lets you gauge radio-wave power, CB and cellular phone equipment, and many types of radars.
The RADIO/MICROWAVE setting on the BROADBAND TRIFIELD METER is more senstive over a wider range of frequencies than the ordinary Trifield Meter which is more widely sold today at a only a slightly lower price, and the TRIFIELD BROADBAND designed as a more general electromagnetic measurement tool. It detects electric and magnetic fields from power line frequencies (50-60 Hz) up through around 3 GHz, which includes many harmonic frequencies. This fills in the gap from 100 KHz to 50 MHz, which includes many amateur radio frequencies so that antenna radiation patterns can be measured. The TRIFIELD BROADBAND METER detects powerline electric and magnetic fields and the most common frequencies used in microwave ovens plus a range of frequencies typical of AM/FM and CB/Ham radio broadcasting towers. Aside from this greater bandwidth sensitivity, the TRIFIELD BROADBAND METER is identical in size, weight, appearance and ease of use to the standard model and long-selling Trifield Meter.
The TRIFIELD BROADBAND METER comes with a 9-volt transistor battery and booklet describing the operation and use of the meter in fuller detail.
For more information on the hazards of low-level electromagnetism, review the various titles on these subjects in our "Electrosmog" book section.
Warranty: All our meters are warranted against defects of materials and workmanship, excluding abuse or misuse or breakage of parts by the purchaser, for a period of one year from the date of purchase. We will either repair or replace the meter with one of equal quality. Click here for our full Warranty and Returns Policy.
LEGAL DISCLAIMER There is considerable scientific controversy regarding the issue of low-level electromagnetism as from power lines, computers, fluorescent lights, cell phones, Wi-Fi, microwave ovens, cell phone and radio broadcasting towers. The federal government standards are set in accordance with opinions offered by select groups of mainstream scientists with whom the government consults, along with representatives of industry. There also is, however, a considerable minority scientific viewpoint, backed by good evidence, in opposition to those standards. Many ordinary people can also feel and react to levels of EM radiation which are considered "too low to be of concern" by the mainstream opinion. The information you will get from Natural Energy Works represents this minority viewpoint, which we believe is the more accurate one. However, it is your responsibility to make informed decisions and to evaluate both sides of the issue before taking concrete steps about your particular circumstances, such as buying or selling a house, or staying in or moving out of an apartment. The instruments we offer, made by many different reputable manufacturers, can help you to determine your exposure to low level radiations, but we cannot advise anyone on what to do in the case of a given exposure level. Neither Natural Energy Works nor the manufacturers of our products are responsible for any claims arising from use, misuse or loss-of-use of our devices and products, nor in the event of malfunction or delays in shipping. Our Warranty is limited solely to replacement and repair of any meters or devices which may malfunction, within the limitations given on our "Warranty and Returns" webpage (see the link on the left side).
A Final Word of Advice on "EM Protection Gadgets": Be aware there are many devices on the market which claim to reduce radiation intensity or eliminate radiation health effects from power line fields, TV sets, cell phones and towers. We have never seen any scientifically-defendible proof of such claims. So long as you can measure the emission fields of such devices, the effects will continue to exist. Remember also, a cell phone will give you a much higher dose of RF energy right near your head than what you might get from even a relatively close cell tower. So if you are concerned about cell phone tower radiation, then you should be 100 times more worried about using a cell phone, or even the portable in-house wireless phones which use a base-station inside the home to connect with your ordinary telephone wire. We suggest, ordinary telephones with a hard-wire work perfectly fine, and are less complicated anyhow. Likewise, a gas-fired or electric stove works just as good as a microwave oven, even better if one considers the subjective taste factor. Ordinary incandenscent bulbs also remain much better for health than the electromagnetically-disturbing fluorescent or "compact fluorescent" bulbs, which put out an unsatisfying dull light in any case. Life continues quite well when we are "unplugged" and get our emails only once a day, or return phone calls hours later, rather than "right away".
