Power supply: The detector can use two power supply modesi.e. external adapter or internal battery.
They can be usedtogether, while the adapter will not charge the battery
Internal battery: 2 "AA" batteries
Standby current: <50uA
Operating current: <25MA
Detection range: 4-8 meters/110 degrees
Wireless distance: 100 meters (open space)
Shell material: ABS