Contact Sensor 6-pack (2nd Gen)

Features:

• Get instant mobile alerts when doors and windows open in your home with a Protect subscription (sold separately).
• Now smaller to enable increased placement options.
• Easy installation with no tools required.
• Mounts to door and window frames.
• Includes two 3V CR2032 batteries.
• Requires the Base Station.
• A Certified Refurbished Contact Sensor is refurbished, tested, and certified to look and work like new and comes with the same limited warranty as a new device.