433-80Plus magnetic contact via radio. Brown color. Compatible with Zerowire and Xgen control panels. The 80plus protocol uses the 433Mhz frequency for improved indoor range. 5 year life from a battery. Configuration using switches. Additional zone entry. Frequency: 433.65 MHZ. Powered by a 3V DL123A battery. Dimensions: 101 x 31 x 28mm.