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Sensor Type
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Electromagnetic Field (EMF) Detector
Signal Detector
Wi-Fi Testers
Radio Frequency (RF)
Audible Indicator
Auto-Shut Off
Battery Operated
LCD Display
Ease of Installation
Beginner (Installs < 10 minutes)
Extech Instruments
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Monitor High Frequency Radiation in the 10MHz to 8GHz Frequency Range
Extech Instruments 480846 8GHz RF Electromagnetic Field Strength Meter
Extech Instruments 480846 8GHz RF Electromagnetic Field Strength Meter
Extech Instruments 480846 8GHz RF Electromagnetic Field Strength Meter
Item# 90215
Price: Normally $649.99 
Hot Deal $599.96
Free shipping on orders over $175 - See Details


  • Electromagnetic field strength measurement
  • Mobile phone base station antenna radiation measurement
  • RF power measurement for transmitters
  • Wireless LAN (Wi-Fi) detection/installation

Essential Info

The Extech Instruments Electromagnetic Field (EMF) Strength Meter monitors high frequency radiation in the 10MHz to 8GHz range. This meter is ideal for cell phones, base stations, locating RF hotspots, wireless network (Wi-Fi) RF detection, RF "Electrosmog" detection, microwave leakage, and wireless communication applications (CW, TDMA, GSM, DECT). It features non-directional measurement with 3-channel (tri-axial) measurement probe, Max Hold and Average functions, and manual store/recall of up to 99 data sets. In addition, there is an audible alarm with a user-selectable threshold. The meter comes complete with a 9V battery and carrying case.

  • Measurement optimized for 900MHz, 1800MHz, 2.7GHz, 3.5GHz and 8GHz
  • Non-directional (isotropic) measurement with three-channel (triaxial) measurement probe
  • Max Hold and Average functions
  • Manual store/recall up to 99 sets
  • Level exceed audible alarm with user selectable threshold

  • Manuals/Software

    What's Included

    1x - EMF Strength Meter
    1x - 9v Battery
    1x - Carrying Case


    ManufacturerExtech Instruments
    Manufacturer Product No480846
    Measurement MethodDigital, triaxial measurement
    Directional CharacteristicIsotropic, triaxial
    Measurement Range SelectionOne continuous range
    Display Resolution0.1mV/m, 0.1µA/m, 0.1µW/m², 0.001µW/cm²
    Setting Time: TTypically 1s (0 to 90% of measurement value)
    Display Refresh RateTypically 0.5 seconds
    Display TypeLiquid-crystal display (LCD), 4 digit
    Audible AlarmBuzzer
    UnitsmV/m, V/m, µA/m, mA/m, µW/m², mW/m²
    W/m²µW/cm², mW/cm²
    Display ValueInstantaneous measured value, maximum value
    or maximum average value
    Alarm FunctionAdjustable threshold with ON/OFF
    Data Memory and Read Storage99 data sets
    Dry Batteries9V NEDA 1604/1604A
    Battery Life:3 hours
    Auto Power Off5 minutes
    Operating Temperature Range0°C to +50°C
    Operating Humidity Range5% to 75%RH
    Storage Temperature Range-10°C to +60°C
    Storage Humidity Range0% to 80%RH
    Dimensions67 x 60 x 247mm (WxTxL)
    Weight (including battery):Approx. 8.8oz (250g)
    Electrical Specifications
    Sensor TypeElectrical field (E)
    Frequency Range10MHz to 8GHz
    CW Signal (f > 50MHz)20mV/m to 108.0V/m
    53µA/m to 286.4mA/m
    1µW/m² to 30.93W/m²
    0µW/cm² to 3.093mW/cm²
    Dynamic RangeTypically 75dB
    Absolute Error at 1 V/m & 50 MHz±1.0dB
    Frequency Response±1.0dB (50MHz to 1.9GHz)
    ±2.4dB (1.9GHz to 8GHz)
    Isotropy DeviationTypically ±1.0dB (f>50MHz)
    Overload Limit10.61mW/cm²(200V/m)
    Thermal Response (0 to 50°)±0.5dB
    Important notes:
    Only defective exchanges for identical item within 30 days of purchase. No other returns allowed on this item. For defective returns after 30 days, please contact the manufacturer.
    Manufacturer contact information: Extech Instruments Corp, Tel: (781) 890-7440 Ext 200



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