1. Small body, big effect, just press the button to start the measurement, and the operation is simple and sensitive, ensuring the accuracy of the measurement results. 2. The living environment is full of radiation. There are many radiation sources in daily life. Microwave ovens, electric fans, air conditioners, etc. can all emit radiation. Care for the health of your family and stay away from radiation. 3. One machine with three functions is convenient and efficient to detect electric field, magnetic field radiation and temperature at the same time<br><br>Product Description Product name: electromagnetic radiation tester, household nuclear radiation tester, Electric field range: 1V-1999V Magnetic field range: 0.1μT-99.99 Temperature range: -10°-70° Applicable battery: AAA Weight: 128g color: Black Material: ABS<br><br>Package Contents: 1 x Electromagnetic radiation detector 1 x Chinese and English manual<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.