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  • Extech 480826 Triple Axis EMF Tester
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Extech 480826 Triple Axis EMF Tester

by Extech

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  • Three axis (X, Y, Z) electromagnetic field measurement (30Hz to 300Hz)
  • Three axis ( X, Y, Z direction) electromagnetic field measurement
  • Ideal for EMF measurements around power lines, electrical appliances and industrial devices
  • Wide measuring ranges (3 ranges of µTesla or mGauss)
  • Big digit LCD display, Data hold
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10 new 1 used from $175.00

Frequently Bought Together

Extech 480826 Triple Axis EMF Tester + Extech 480846 8GHz RF Electromagnetic Field Strength Meter
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  • Buy Used and Save: Buy a Used "Extech 480826 Triple Axis EMF Tester" and save 43% off the $309.99 list price. Buy with confidence as the condition of this item and its timely delivery are guaranteed under the "Amazon A-to-z Guarantee". See all Used offers.

Product Information

Technical Details
Part Number 480826
Item Weight2 pounds
Product Dimensions11.3 x 10 x 3.2 inches
Item model number480826
Item Package Quantity1
Batteries Included?Yes
Batteries Required?Yes
Warranty Description1 year
  
Additional Information
ASINB000ISC70K
Best Sellers Rank #141,013 in Home Improvement (See top 100)
Shipping Weight2.2 pounds (View shipping rates and policies)
ShippingThis item is also available for shipping to select countries outside the U.S.
Date First AvailableNovember 30, 2006
  
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Product Description

From the Manufacturer

Designed to provide a quick, reliable and easy way to measure electromagnetic field radiation levels around power lines, electrical appliances and industrial devices. Provides Three axis ( X, Y, Z direction) electromagnetic field measurement. Calibrated to measure EMF radiation at wide bandwidths from 30 Hz to 300 Hz. Complete with sensor with 3-Foot (930mm) cable, 9V battery, and hard carrying case.

Product Description

Triple Axis EMF Tester

Designed to provide a quick, reliable and easy way to measure electromagnetic field radiation levels around power lines, electrical appliances and industrial devices with readout in milliGauss (20,000milliGauss) or microTesla (2000 microTesla).

Other Features

Provides three axis (X, Y, Z direction) electromagnetic field measurements. Calibrated to measure EMF radiation with a wide bandwidth of 30Hz to 300Hz.

Includes

Comes with sensor with 3-foot (930mm) cable, 9V battery, hard carrying case, and user manual.


480846
8GHz RF EMF Strength Meter

A handy tool for monitoring frequency radiation in the 10MHz to 8GHz range, the Extech 480846 RF EMF Strength Meter is ideal for mobile phones, cell phones, base stations, locating RF hotspots, wireless network (Wi-Fi) detection, RF "Electrosmog" detection, and microwave oven leakage. It features non-directional measurement with three-channel (triaxial) measurement probe, maximum hold and average functions, and manual store/recall of up to 99 data sets. The 480846's measurement optimized for 900MHz, 1800MHz, 2. 7GHz, 3.5GHz, and 8GHz ranges. If an RF measurement exceeds a user selectable threshold, an audible alert will sound. The 480846 measures 9.3 x 2.4 x 2.4" (HxWxD), weighs 7 ounces and is powered by a 9-volt battery.

480836
3.5GHz RF EMF Strength Meter

A handy tool for monitoring frequency radiation in the 50MHz to 3.5GHz range, the Extech 480836 RF EMF Strength Meter is ideal for mobile phones, cell phones, base stations, locating RF hotspots, wireless network (Wi-Fi) detection, RF "Electrosmog" detection, and microwave oven leakage. It features non-directional measurement with three-channel (triaxial) measurement probe, maximum hold and average functions, and manual store/recall of up to 99 data sets. The 480836's measurement is optimized for 900 MHz, 1800 MHz and 2.7 GHz ranges. If an RF Measurement exceeds a user selectable threshold, an audible alert will sound. The 480836 measures 9.3 x 2.4 x 2.4" (HxWxD), weighs 7 ounces, and comes with 9V battery, carrying case, and user manual.


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Review for: Extech 480826 EMF Meter (30Hz to 300Hz Triple-Axis)

OVERVIEW:
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Measures EMF strength of low frequency (30Hz-300Hz in this case) portion of AC MAGNETIC FIELD (NOT AC electric field, too) from any one of 3 directions in milligauss (mG) or microteslas (uT).

This is NOT giving you a single value calculated from separate readings but rather 3 separate readings from each of 3 directions. It has a hold button to freeze a reading.

Because cell phones and microwaves are in a much higher frequency range, this product does not measure EMF (RF) at those frequencies. You would want a separate meter for that.

The 3-axis Thor's hammer like sensor may at first seem of questionable value, but it does add some convenience.

The Achilles Heal of this instrument, and the reason this is 2 stars and not 4 or 5, is that according to Extech Sales and Engineering, and confirmed with them as well, this model is HIGHLY INACCURATE for LOW EMF readings .. a fixed +/- 8.3 milligauss. This would mean a reading of 2 milligauss is actually 2 +/-8.3 milligauss. This is because the 4% accuracy is not of the displayed value but rather of the the value of the end of the measurement range (200 milligauss x 4%). Since so much of the consumer use of EMF checking is in the single and low teens mG, this is unfortunate.

To their credit Extech is up front about this unit being mostly for noting the existence of stronger EMF at low frequencies, not necessarily for quantifying it.

MAIN VALUES:
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- Measures EMF at 30Hz-300Hz low frequency range, which covers most EMF generated by AC power in most homes/offices. 60Hz (U.S.) and much of the EMF generated by resulting harmonic frequencies ..
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