Magnetic contact via radio for the PowerMaster system. Designed for the protection of doors and windows. Auxiliary input selectable as NC or RFL (with NC and NO sensors). Bi-directional PowerG radio technology. Visible indication of signal quality in the device. It uses advanced encryption algorithm AES-128 for the identification of messages. Frecuency Hopping- Spread Spectrum and TDMA technology, provide the robustness and reliability similar to that of wired systems. Visible indication of low battery. Configuration from the panel, there are no switches and no need to reopen the detector once closed. Works with 3V lithium battery type CR123A. Battery autonomy, 8 years with normal use. Operating temperature: 0 to +49 ºC. Dimensions: 81 x 34 x 25 mm. EN50131 certificate. Grade 2.