Compact Design: This digital EMF meter is compact for travel, parapsychological research, inspections, and hotel use. The portable design is easy to carry and store, allowing testing anywhere. Wide Applications: Electromagnetic radiation detectors can measure sources such as air conditioners, induction cookers, rice cookers, refrigerators, computers, and wires. Sound and Light Alarm: When the detection result exceeds the safety threshold, the EMF meter will automatically trigger an alarm. As the radiation level increases, the alarm sound frequency increases. Radiation Assessment: EMF detectors help you better understand electromagnetic fields and how to minimize EMF exposure. This meter tests both electric and magnetic field radiation. Easy Operation: The radiation tester clearly indicates whether the current radiation level is within a safe range. It has a sleek design and is easy to operate with one hand. Color: Yellow Material: Plastic Size: Approximately 12.5 x 6 cm Package Contents: 1 x Electromagnetic Radiation Tester Note: Light reflection and different displays may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.