Features Care for Health: There are many sources of radiation in daily life, microwave ovens, electric fans, air conditioners and so on can emit radiation, care for the health of your family, this electromagnetic radiation tester to help you stay away from radiation. Three in One: Electromagnetic field radiation meter has three in one function, detecting electric field, magnetic field and temperature at the same time, convenient and efficient. Testing Frequency: E-M-F radiation tester's testing frequency width is 5Hz‑3500Hz, to meet your daily life testing needs. The test mode is dual mode simultaneous measurement. Application Equipment: E-M-F radiation meter measures the radiation of the TV, induction cooker, rice cooker, refrigerator, computer, other electrical appliances, electric wires, etc. ABS Material: E-M-F radiation tester detector is made of excellent ABS material with excellent craftsmanship, light weight, easy to carry, used stably. Specification: Item Type: Electromagnetic Radiation Tester Material: ABS Battery: AAA Batteries x 3 (Shipped Without Batteries) Test Frequency Width: 5Hz-3500Hz Sampling Time: About 0.4 Seconds Test Mode: Dual Mode With The Measurement Electric Field Range: 1V/m-1999V/m Magnetic Field Range: 0.01μT-99.99μT packing list: 1 x Electromagnetic Radiation Tester 1 x Instruction Manual Package List 1 x Electromagnetic Radiation Tester 1 x Instruction Manual