Cornet ED78S EMF RF Meter ElectroMagnetic Detector (2016)

Cell towers | Smart meters | WiFi signal strength meter | Microwave ovens | Power lines | Transformers | Home appliances | Outlet Boxes | Paranormal.Note :1. To measure RF from the router, the operation mode of the meter needs to be in RF mode. We can achieve it by pressing the mode button. 2. The LCD back light can be turned on/off manually by pushing the 2nd button to get into the Hold mode first then toggle the 1st button to cycle through the sound-on/light-off, sound-on/ light-on, sound-off/light-off, and sound-off/light-on setup, then push the 2nd button to get out of the Hold mode. The LCD back light consumes a lot of battery current when it is on, therefore the default is auto back light off after 10 seconds to save the battery power.