NB Door Contact F1, Recessed

NookBox wireless magnetic contact for recessed mounting is a discreet door contact that is discreetly mounted on doors and windows.
It is hidden within the door and window frames, making it ideal for security applications, to prevent burglaries.

It has a pre-installed lithium battery that provides up to 10 years of battery life (may vary depending on usage and environment).
High security and supervised signal and battery level.
Its slim design blends into the home and enhances security without affecting the aesthetics.

Features:

Monitors opening/closing of doors and windows
Long-lasting battery (Up to 10 years)
Easy installation
LED indicator for errors and test mode
Battery warning

Specifications:
Frequency: 868 MHz (F1)
Temperature: -10°C to 45°C
Humidity: Up to 85 %