Features: - EMF levels are measured to prevent long-term exposure that may be harmful to European forests. - Measure various EMF ranges, from 50 Hz to 20,000 Hz, and you can register a mobile phone within 2 feet. - Ghost Hunting Detector runs on a single battery and reports that the electromagnetic frequency measurement range is 5 mm. - Easy-to-read multi-segment LED display. The detector is related to the location, and the unexplained phenomenon is reported to be related to radiation. - The EMF meter range used for ghost hunting helps to measure electromagnetic fields to identify devices that produce high radiation, allowing users to decide to limit exposure. Specifications: Material: ABS Accuracy: +/- 5% Size: 14.3*2.9*5.3cm Detection range: 0-200000 gallons Power supply: 1*9V battery (included) Package included: 1 x EMF field detector (included battery) Notes: 1. Manual measuring, please allow 1 ~ 3mm error,thank you. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the picture.