Item Name: Magnetic Field Frequency Tester Electromagnetic Radiation Tester EMF Meter. Item weight: 107g / 3.8ounceItem size: 135 * 60 * 27mm / 5.3 * 2.4 * 1.1inColor: blackMaterial: ABSPower supply: 3 * 1.5V AAA battery (not included)Description:This detector can test electric field radiation and magnetic field emission to reach the optimal test result. It's widely used to test and learn electromagnetic radiation situation indoor and outdoor. Features:One detector with two uses, it can test the electric field and the magnetic field radiation at the same time.When the test result exceeds the safe value, the instrument will alarm automatically.Data hold and clear LCD display, one-key can lock the radiation value and easily read the value.Radiation assessment can remind you whether the radiation value is safe.Easy to use and operate, easy to move or for on-site measurements.Electromagnetic radiation monitoring: household and appartment, office, outdoor and industrial site.Electromagnetic radiation test: mobile phone, computer, TV set, refrigerator and high voltage cable radiation test.Radiation protection product test: test effects of radiation-proof clothes, radiation-proof film and other prevention articles.Equipped with a built-in electromagnetic radiation sensor, which can display the radiation value on the clear LCD digital display after processing by control micro-chip. Specifications: Electric field: 1 V/mMagnetic field: 0.01microTElectric field: 1-1999V/mMagnetic field: 0.01microT -99.99microTReading display: 3-1/2-digit LCDElectric field: 40V/mMagnetic field: 0.4microTTesting bandwidth: 5Hz-3500MHzSampling time: about 0.4 secondsTest mode: bimodule synchronous testOperating temperature: 0~50C / 30F~122FOperating humidity: relative humidity