DescriptionThis electromagnetic radiation tester is more convenient and practical, can support long time using.Easy operation, can detect the power of electromagnetic radiation around home electronics, electricity wire, industrial equipment and so onFeatures-Color: Black.-Material: ABS, electronics. -Size: About13.20X6.90X2.90cm/ 5.19X2.71X1.14in. -Test bandwidth: 50Hz2000MHz. -Reactingtime: about 0.4 seconds. -Working voltage: 9V. -Battery model: 6F22 9V (not included). - The frequency range is wide that can meet more kinds of detecting by low cost. -The appearance stylish and easy to operate with one hand, easy to move or measure on site.-The clear LCD display shows the values for easy reading, the device is reliable and easy to operate. -For detecting home electronics, such as cell phone, PC, TV, copy machine, fax machine, AC, refrigerator and so on. -Switch on the device, close to the object slowly until contacts with it, the closer the distance is the stronger the power of electromagnetic radiation is.