Description: 【Radiation Tester】: The household electromagnetic radiation detector helps you easily identify and measure electromagnetic radiation levels in your surrounding environment, measuring a wide range of 50Hz-20000Hz. 【Portable Size】: Handheld EMF meter, 16.7cmx6.5cmx3.7cm/6.57inchx2.56inchx1.46inch, compact and lightweight size, easy to carry. 【Easy to Use】: User friendly radiation tester, that adopts a simple and Simple Led indicator display method, easy to read, even non professionals can use it. 【5 LED Indicators】: The EMF meter adopts 5 LED indicators with different colors, representing different radiation values, dark green 0-1.5mG, green 1.5-2.5mG, blue is 2.5-10mG, orange 10-20mG, red above 20mG. 【Wide Applications】: Practical electromagnetic radiation field detector, suitable for testing home, office, outdoor inspections, refrigerator, TV, computer, oven and other home appliances. Specification: Material: plastic electronic components Powered by 1 9V 6F22 Battery (NOT included) Package Includes: 1 EMF Meter 1 Manual Note: Please allow slightly errors 1-2cm differences due to manual measurement.