Specifications:
Material: Plastic
Color: Black
Screen: LCD
Frequency Range: 50Hz-2000MHz
Reacting Time: 0.4S
Voltage: 9V
Model: 6F22 9V( is NOT included)
Size: 132MMx69MMx29MM/5.20 x 2.72 x1.14Inch
Weight: 157G

Package includes:
1 x Electromagnetic Radiation Detector

How to detect:
Switch on the device.
Close to the object slowly until it. The closer the distance is, the stronger power of electromagnetic radiation is. Remind: Do not close to the object with high voltage.
Change the angle during detecting until get the maximum data.
When the object is power off, the reading will be restored to 0 unless there are other electromagnetic radiation disturbings.
About
When the reading of the device is too low or no alarm that means low power, please change .
Please remove the when finish using it.