Design: This digital EMF meter is for travel, parapsychological research, visitors and hotel inspections. The portable design is easy to carry and , and can be tested anywhere.Wide Applications: Electromagnetic radiation detectors can measure such as , air conditioners, induction cookers, rice cookers, refrigerators, computers, wires and other paranormal equipment.Sound and light alarm: When the detection exceeds the safety value, the EMF meter will alarm automatically. As the radiation value increases, the frequency of the alarm sound becomes louder.Radiation Assessment: EMF detectors help you better understand electromagnetic fields (EMF) and understand how to minimize EMF exposure. EMF meters can test for both electrical and magnetic -amp radiation.Easy Operation: The radiation tester intimately reminds us whether the current radiation value is safe. It is sleek and convenient to use with one hand, making it easy to measure in .Colour:yellowMaterial:plasticSize:about 12.5 x 6cmPackage Contents:1 * Electromagnetic radiation testerOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.