Dimension : 401(L) X85(W) X45(H) mm,
Power Voltage : standard 9V battery,
Operating Voltage : 7V-9V,
Operating Current : <50mA,
Alarm terms: sound (vibration) and light alarm simultaneously.
https://drive.google.com/file/d/1FvqFjlaN-j4tVk_2va5qjM2xk-ibGKlG/view?usp=sharing