Product Review: Extech 480836 EMF Strength Meter
The Instrument Choice Team of Scientists regularly reviews new and popular products, so when searching for the perfect scientific instrument for your application, you can make more informed decisions.
This edition evaluates the Extech 480836 EMF Strength Meter, detailing the meter's noteworthy features, specifications and provides examples of best applications.
About Electromagnetic Fields (EMF)
Electromagnetic fields occur in nature and from human-made sources. Natural causes include electrical charges produced by thunderstorms and the Earth's magnetic field. TV antennas, electrical wiring, and appliances are common human-made sources.
Electric fields exist whenever a positive or negative electrical charge exerts forces on other charges within a field. The standard unit for measuring electric field strength is volt per metre (V/m).
Magnetic fields arise from the motion of electric charges. The most common unit for measuring magnetic field strength is in amperes per meter (A/m). In electromagnetic field research, it's more common for scientists to specify a related quantity: i.e., the flux density (microtesla, µT).
Summary of the Features and Benefits Extech 480836 EMF Strength Meter
- High-Frequency Measurement: The Extech 480836 EMF Strength Metermeasures high-frequency EMF radiation - 50MHz to 3.5GHz frequency range.
- Multi-Use: Suitable for electromagnetic field strength measurement in situations such as checking radiation from mobile phones, WiFi, and microwave leakage.
- Tri-Axis Sensor: The Extech 480836 EMF Strength Meter has a non-directional (isotropic) measurement with a triaxial measurement probe - for easy measurements regardless of the sensor's positioning.
- User-Friendly Functions: It's easy to interpret EMF measurements due to the unit's maximum, hold and average view press-button functions.
- Data Storage: Users can manually store and recall up to 99 sets.
- Alarms: When exceeding user-selectable thresholds, an audible alarm will sound. This feature is helpful when you can't keep you eye on the LCD.
- Design: The lightweight design, weighing in at only 200 grams, allows the Extech 480836 EMF Strength Meter to be transported with ease and used for an extended period without discomfort.
- Complete Kit: Comes with a 9V battery and carrying case.
Extech 480836 EMF Strength Meter Specifications
|
Specifications |
|
|
Sensor Type |
Electric Field |
|
Frequency Range |
50MHz to 3.5GHz (Measurement optimized for 900MHz, 1800MHz and 2.7GHz) |
|
Units of Measure |
mV/m, V/m, μA/m, mA/m, μW/m2 , mW/m2 , W/m2 , μW/cm2 , mW/cm2 |
|
Measuring Ranges |
20mV/m to 108.0V/m |
|
Resolution |
0.1mVm, 0.1mA/m, 0.1mW/m2, 0.001mW/cm2 |
|
Alarms |
Audible alarms with an adjustable threshold with ON/OFF |
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Memory |
Manual store and recall of 99 data sets |
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Dimensions |
237 x 60 x 60mm |
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Weight |
200g |
Extech 480836 EMF Strength Meter Applications
- Locating RF "Hot Spots" in the workplace or at home
- RF electromagnetic wave field strength measurements
- Mobile phone, base station, and antenna radiation monitoring
- Power density measurements
- Radiation safety level tests
- Microwave oven leakage tests; and
- Wireless network (WiFi) RF detection.
Conclusion
The tri-axis Extech 480836 EMF Strength Meter is an easy-to-use RF-EMF meter that's ideal for investigating almost any EMF in any environment.
Want more information on Extech or other EMF Meters? Speak with an Instrument Choice Scientist! We're here to help! Call 1300 737 871 or email [email protected].
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