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 TVs, 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 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 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 the field.<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.