High Accuracy Electromagnetic Field Meter Electromagnetic Field Radiation Detector For Electrical Equipment Feature: 1. Multi Detect Range: It can measure electromagnetic field in both extremely low frequency (ELF) and extremely low frequency (VLF) ranges. 2. Operating frequency: Specially designed to operate in the natural direct current range of 0 to 3 Hz (the frequency itself below very low), including human frequencies and the earth itself. 3. Easy operation: Operation is simple and convenient. Press the button to activate it. To monitor the reading, press and hold the button. 4. Detect Frequency: The detected frequency is 50/60 Hz (50-1000 Hz-elf) (1000-20000 Hz-vlf), and the accuracy is 5%, which is very practical. 5. High-quality material: High-quality ABS material has been selected, which is resistant to impacts, drops, wear, not easy to damage and can be used for a long time. Specification: Item Type: Electromagnetic Field Meter Material: ABS Product length: approx. 14,3 cm / 5,6 inch Weight: approx. 131 g / 4,6 oz Battery: 6F22 9V Lithium Battery, 800mAh (with built-in battery provided) Package List: 1 x EMF Meter 1 x English Manual