Elpa Slim Window Alarm with Impact & Open Detection, Pearl White, ASA-W13 PW (1 unit) x 1 + ASA-W13-2P PW (2 units) x 1, Total of 2 Units

This dual-detection alarm sounds when it detects glass breakage or impact, and when the window is opened. The impact detection feature only detects glass breakage or impact, eliminating the risk of false alarms caused by rain, wind, or vibrations from large vehicles.

[Set Contents] ELPA Slim Window Alarm with Impact & Opening Detection, Pearl White, ASA-W13(PW) x 1, ASA-W13-2P (PW) x 2

When it detects an impact or glass breakage, a loud alarm (approx. 90dB/50cm) sounds for approximately 25 seconds.

The unit is only 8mm thick, allowing for easy opening and closing on most windows. A large, easy-to-operate slide switch indicates arming/disarming at a glance. It can also be installed on patterned glass (glass with a textured surface). Note: Some decorative glass with significant texture may not be compatible.