Oplink Security Door/Window Contact Sensor
By Oplink Security (DWM1300-5/DMW1301)
Oplink Wireless Door/Window Sensor
This wireless door/window sensor works with the Oplink wireless security monitoring system to detect entry through doors and windows. The slim, unobtrusive design is easy to install in just minutes (no configuration necessary). Detects open and close status and is tamper-proof.