This meter is used to measure and monitor Radio Frequency (RF) electromagnetic field strength with 38mV ~ 11V/m measuring range.Ideal in measuring RF power of transmitters, Mobile phone base station antenna, Spy camera, wireless bug finder, Wireless communication, Wireless LAN (Wi-Fi) detection, installation, Cellular/Cordless phone radiation safety level and even personal safety inspection. Features:Triple Axis SensorAdjustable threshold with On/Off Alarm functionMAX and AVG memory recallAdjustable Calibration factorWith Data MemorySet Includes: 1x 3-Axis RF Meter1x 9V battery1x AC adaptor1x Instruction Manual1x Calibration certificate1x Protective hard case with foamSpecification:Measurement range: 38mV ~ 11V/mDisplay: 4-1/2 digits maximum reading 19999Frequency range: 10MHz ~ 8GHzSensor: Triple Axis All axis, X axis, Y axis, Z axisMeasurement units: mV/m , V/m , µA/m , mA/m , µW/m2 , mW/m2 , µW/cm2Display resolution: 0.1mV/m, 0.01V/m, 0.1µA/m, 0.1mA/m, 0.001µW/m2, 0.01mW/m2, 0.001µW/cm2Manual data memory: 200 data sets.Sampling Time: 1.5 times per second.Operating Temperature and Humidity: 0~50°C (32~122°F). Max. 80% RH.Power Supply: 1 x 9V batteryBattery life: approx. 3 hrs.Weight (Including Battery): approx. 400gSize: 380(L)*80(W)*77(H) mm.