【Unopened】Security Alarm for Windows - Detects Shaking and Opening, Slim Design, Double-Sided Tape, Intrusion Prevention

The batteries are old, so please use new ones.
Although unopened, this is a long-term storage item, so we cannot guarantee its operation. No claims or returns, please.

Monitors window glass vibration and opening/closing simultaneously, emitting a loud alarm sound.

Ultra-thin design: 8mm
Powerful alarm sound
Alarm duration: Approx. 20 seconds (resets and re-alarms after stopping)
Easy installation, just stick on with double-sided tape!
Weight (g): 33 (excluding batteries)

External dimensions (Depth D x Width W x Height H) (mm): 8 x 45 x 100

Batteries used: 3 x LR44 alkaline button batteries (test batteries included)