Wireless Magnetic Reed Switch is built for indoor environments. It can detect the opening / closing of windows and doors.

Product Features:

• Immediate alarm if the magnet and detector are more than 2cm apart

• The magnet must be mounted 1cm or less from the detector

• Tamper switch for vandal protection

• 1.5VDC power supply, requires 1 x AA LR6 battery

• Monitor and receive alerts to your phone with the Smart Life app