The product belongs to the category Crystal Break Sensors. It is a glass break alarm for doors that activates upon vibration. It features a loud siren for notification and is wireless and autonomous. It comes in a set of two alarms for easy and quick home security.

• Use: Ideal for alarms on windows, doors, and skylights.
• Siren volume: 85 dB* / 80 dB(A)**.
• Activation: The alarm activates with vibration during glass breakage.
• Power supply: Operates with 3 LR44 batteries (per sensor, included).
• Dimensions: 60 x 60 x 20 mm (per sensor).
• Weight: 38 g (per sensor).
• Contents: 2 sensors, 6 LR44 batteries.

* Measurement at the sound source.

** Measurement 1 meter from the sound source.