4 x LR44 Batteries
65 x 65 x 8 mm
White
SH238M
90 dB
1,000 piece(s)
Hong Kong or China
Mount it on the window and door with adhesive.
When the glass is being hit, knocked or opened by anyone, the unit will alert high output siren for 20 seconds.
Adjustable "Hi"/"Low" sensitivity for different environments.
45 days