Measurement range of 200 MHz-8 GHz, true response detection range 400MHz-7.2GHz (+/-6dB) Accuracy +/-6dB performance tested in a 3rd party certified RF testing lab. Individually calibrated QC inspected Sound signature analysis for source identification 3 vol levels, Sound On/Off Low EMF emissions 4 line OLED Display Sensitive to 0.001µW/m, made for the EHS persons Now featuring 2 options (V/m) or (µW/m) Measure under any environmental conditions Power Response linearization in 3rd party certified RF test lab Measures low b mid b 5G cellular signals Measures densities up to 3,180,000 µW/m down to 0.005 µW/m (Linear response 0.1µW/m-1,000,000µW/m) Max Hold w option to clear Bar graph of RF intensity USB Micro Power Jack Adjustable Vol Control, 3.5mm headphone jack Bat display Made in North America