Features: Recessed Door Contact Compact Size, only 2-1/2" Long Fully Supervised Rare Earth Magnet Transmits 345 MHz ETL Listed Non-encrypted sensor compatible with GC2, GC2e, GC3, GC3e, and Edge Each Door Contact Includes (1) CR2 Lithium...

Features: Encrypted Protocol for Enhanced Security For narrow applications, sensor is only 3/4" wide Fully supervised Rare earth magnet Supports internal and external contacts Can be used for 2 zones of protection ETL listed eSeries encrypted sensor...

Features: Encrypted Protocol for Enhanced Security Recessed Door Contact Compact size, only 2 1/2" long Fully supervised Rare earth magnet ETL listed eSeries encrypted sensor compatible with 2GIG GC2e, GC3e and Edge Includes (1) CR2 Lithium...