Size: L*W*H 12mm * 10.2mm * 11mm
Power Adapter: DC9V1A （included）
Power: AC 110-240V the length of the power cable is about 92cm/3ft,can be extended by yourself.
the wireless operating frequency: 433MHz
the use of the environment: stability: 0 ℃-55℃ , Relative Humidity: 40% -70%
the alarm sound: greater than 110 db