Features MULTI FUNCTIONAL: 3 in 1 device efficiently detects electric field radiation, magnetic field radiation, and temperature simultaneously, bringing you maximum convenience. 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. 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. EFFICIENCY AND VERSATILITY: As an all in one gadget, the tester is efficient and convenient to use, perfect for frequent and multi purpose applications. 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  Package List 1 x Tester 1 x Manual