Door Contact Sensor

Door contact sensors tell a security system if doors are closed or open. They can be installed all over a house on the windows, doors or even desk drawers. The two pieces of contact sensors are placed next to each other. They drift apart if the door is open, causing the contact sensor to transmit ‘open’ signals to the security system.

  • Wireless
  • One AAA battery
  • 12 month battery life
  • Low battery notification

Comments 1

  1. Hi

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    Greetings

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