Features: 1Care 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. 2Three 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. 3Testing Frequency: EMF radiation tester's testing frequency width is 5Hz?3500Hz, to meet your daily life testing needs. The test mode is dual mode simultaneous measurement. 4Application Equipment: EMF radiation meter measures the radiation of the TV, induction cooker, rice cooker, refrigerator, computer, other electrical appliances, electric wires, etc. 5ABS Material: EMF radiation tester detector is made of excellent ABS material with excellent craftsmanship, light weight, easy to carry, used stably.Item Type: Electromagnetic Radiation TesterMaterial: ABSBattery: AAA Batteries x 3 (Shipped Without Batteries)Test Frequency Width: 5Hz-3500HzSampling Time: About 0.4 SecondsTest Mode: Dual Mode With The MeasurementElectric Field Range: 1V/m-1999V/mMagnetic Field Range: 0.01T-99.99T1 x ElectromagneticRadiationTester1 x Instruction Manual