Features： 1、MULTI FUNCTIONAL: 3 in 1 device efficiently detects electric field radiation, magnetic field radiation, and temperature simultaneously, bringing you maximum convenience. 2、ACCURATE MEASUREMENT: Equipped with a built in electromagnetic radiation sensor, the device can process the data through a control microchip and display it on a clear LCD digital screen. 3、PRACTICAL CONVENIENCE: Given that our living environment is surrounded by radiation from microwave ovens, electric fans, air conditioners, and more, this EMF meter can quickly measure radiation and temperature. 4、EFFICIENCY AND VERSATILITY: As an all in one gadget, the tester is efficient and convenient to use, for frequent and multi purpose applications. 5、DIGITAL DISPLAY: With its clear and detailed LCD digital screen, the electromagnetic radiation tester gives an accurate visualization of radiation values, making it easy to track and monitor exposure levels. Specification： Item Type: Electromagnetic Radiation Tester Material: ABS Battery: AAA battery x 3 (Shipped without batteries) Range: Electric Field: 1V/m to 1999V Magnetic Field: 0.01μT to 99.99 Temperature: -10℃ to 70℃ Test Bandwidth: 5MHZ to 3500MHZ Sampling Time: About 0.4 seconds Test Mode: Dual mode test Operating Temperature: 0℃ to 50℃ Package List： 1 x Tester  1 x Manual