Compact Design: This digital EMF meter is compact for travel, parapsychological research, visitors and hotel inspections. The portable design is easy to carry and store, and can be tested anywhere. Wide Applications: Electromagnetic radiation detectors can measure home appliances such as , air conditioners, induction cookers, rice cookers, refrigerators, computers, wires and other paranormal equipment. Sound and light alarm: When the detection result exceeds the safety value, the EMF meter 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 ch-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 .<br><br>Colour:yellow Material:plastic Size:about 12.5 x 6cm<br><br>Package Contents: 1 * Electromagnetic radiation tester<br><br>Only 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.