Features:XR-2 Function: Test electric and magnetic fields and radio frequenciesThe -screen display makes it easier to read data, and the buttons are easy to operate.The shell is made of high-quality ABS, which has heat resistance and cold resistance, high strength and toughness.It can meet the needs of detection, substation detection, mobile signal tower detection, etc., and is easy to carry.Use silent and alarm modes, test and pause modes, and the backlight can be turned on or off.This detector can test electric field radiation and magnetic field emission to reach the optimal test . It's widely used to test and learn electromagnetic radiation situation indoor and outdoor.specification:Material: ABSColor: BlackTest Range:Power density: 0-99.999w/cElectric field intensity: 0-999.99v/mMagnetic field strength: 0-99.999TTest accuracy:Power density: 0.001w/cElectric field intensity: 0.01v/mMagnetic field strength: 0.001TFrequency Range:Power density: 50MHz-5GHzElectric field strength: 20Hz-100MHzMagnetic field strength: 20Hz-1MHzBattery: 3 x AA 1.5V batteries or 3 x 1.2V rechargeable batteries (not included)Charging: USB 5V 2A inputCharging time: 4 hoursItem size: 105 x 70 x 30mm / 4.1 x 2.8 x 1.2 inchesProduct weight: 100 grams / 3.5 ouncesPackage Contents:1 x Electromagnetic radiation detectorOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.