Specification: Features:_x000D__x000D_Excellent design for a measurement of electromagnetic field radiation levels around power lines, home appliances and industrial devices. _x000D_Used widely in electrical equipment, electromagnetic radiation measurement, phones, computers, TV set copy machine, fax machine, AC, refrigerator and so on. _x000D_Suitable for most measuring effects of radiation products, presentations, and personal understanding of radiation. _x000D_Designed to meet CE. Simple operation, highly sensitive, and 50Hz-2000MHz frequency range. _x000D_Accurate and safety to use. Portable and stable. _x000D__x000D_Specifications:_x000D_Material: Plastic_x000D_Color: Black_x000D_Screen: LCD_x000D_Frequency Range: 50Hz-2000MHz_x000D_Reacting Time: 0.4S_x000D_Voltage: 9V_x000D_Battery Model: 6F22 9V(Battery is NOT included)_x000D_Size: 132MMx69MMx29MM/5.20 x 2.72 x1.14Inch_x000D_Weight: 157G_x000D__x000D_Package includes:_x000D_1 x Electromagnetic Radiation Detector_x000D__x000D_How to detect:_x000D__x000D_Switch on the device. _x000D_Close to the object slowly until contact it. The closer the distance is, the stronger power of electromagnetic radiation is. Remind: Do not close to the object with high voltage. _x000D_Change the angle during detecting until get the maximum data. _x000D_When the object is power off, the reading will be restored to 0 unless there are other electromagnetic radiation disturbings. _x000D__x000D_About battery_x000D__x000D_When the reading of the device is too low or no alarm that means low power, please change battery. _x000D_Please remove the battery when finish using it. Features: 1Excellent design for a measurement of electromagnetic field radiation levels around power lines, home appliances and industrial devices. 2Used widely in electrical equipment, electromagnetic radiation measurement, phones, computers, TV set copy machine, fax machine, AC, refrigerator and so on. 3Suitable for most measuring effects of radiation products, presentations, and personal understanding of radiation. 4Designed to meet CE. Simple operation, highly sensitive, and 50Hz-2000MHz frequency range. 5Accurate and safety to use. Portable and stable. PackageList: