Specifications 
Power Supply DC 3V (AA 1.5V LR6 Battery x 2pc) 
Alarm Current ≤20mA 
Standby Current ≤25uA 
Transmitting Distance ≤50m (in open area) 
Radio Frequency FSK 433.92MHz
Housing Material ABS plastic 
Operating Condition Temperature: -10°C~+55°C 
  Relative Humidity: ≤80% (non-condensing) 
Dimensions (LxWxH) 106 x 60 x 46mm