Specification:Product Name: Electromagnetic Radiation Detector Material: ABS Test frequency bandwidth: 5Hz-3500MHz Sampling time: about 0.4 seconds Working temperature: 0℃-50℃ Working humidity: relative humidity is less than 80% Working voltage: DC4.5V Power supply: AAA1.5V×3pcs (not included) Size: 152x52x26.5mm Electric field measurement range: 1 V/m-1999 V/m Alarm threshold: >40 V/m Resolution: 1 V/m Magnetic field measurement range: μt-μt Alarm threshold: >0.4μt Resolution: 0.01μt Temperature measurement range: -10℃-70℃ Color: Black Notes:1.The product is reusable. 2.There may be slight differences between the picture and the actual color of the commodity. We will try our best to show you the exact color. 3.Please allow slight dimension difference due to manual measurement. Feature:[3 in 1 EMF Detector] This electromagnetic radiation detector can detect electric field radiation, magnetic field radiation and temperature. The electric field radiation measuring range is 1 V/m-1999 V/m, and the magnetic field radiation range is μt-μt. The temperature range is -10℃-70℃. [Compact Size] This radiation detector has a smaller size and a larger LCD digital screen. The measurement data is clear to see. The handheld instrument is easy to operate. [Sound-Light Alarm] When the detection value exceeds the safety threshold, the monitor will emit a red light flashing, and the buzzer will alarm at the same time. Simple operation and sensitive detection. [Easy to Use] The EMF tester is easy to use for indoor and outdoor. It has a built-in electromagnetic radiation sensor, which is processed by a microcontroller chip. [Precise Measurement] You can see the precise radiation value on the display screen, reasonably handle or effectively avoid electromagnetic radiation. It is suitable for detecting home office, computer, TV, refrigerator and other devices. Package Including:1×Host 1×Manual The measurement frequency range is larger up to 5HZ-3500MHZ, The home EMF inspector can be used to test TV, induction cooker, refrigerator, cell phone, computer, electrical wires, WIFI signal, wire tower, and any other low-frequency home appliances.This EMF meter tests electromagnetic field range from 0.1 to 199.9mG with a resolution of 0.1mG/0.01µT. Detects electric field range 1-1999V/M with 1V/M resolution and tests ambient temperature range -10℃-70℃.Scientific test tool aids for students assignment projects, people who want to have DIY home EMF inspections to eliminate radiation risks that potentially deteriorate your family’s health.This EMF reader meter has multiple functions includes data hold & max measurement, one-key to lock the data, manual/auto shut off, safe value setting, and large LCD display of the values with the sound light system. All designed for your convenience.This EMF tester is a compact to use while travel. It is an aid-on analysis tool for parapsychologist research, visitor for haunted house inspection, and hotel inspections, also made for people with pure curiosity.