Natural gas detector for the PowerMaster system. PowerG bidirectional radio technology. Provides early warning of natural gas (methane CH4) leaks, the gas commonly used for cooking and heating. Audible alarm via built-in piezo of 85 dB and visual via large led with flash. Self-test button to check sensor, receiver, led and piezo. Button to silence audible alarm. Visible indication of signal quality on the device. It employs advanced AES-128 encryption algorithm for message identification. Frequency Hopping- Spread Spectrum and TDMA technology provide robustness and reliability similar to wired systems. Visible low battery indication. Configuration from the panel, there are no switches and no need to reopen the detector once closed. 220 Vac power supply. Includes 3V lithium backup battery type CR123A. Operating temperature: 0 to +45 ºC. Dimensions: 155 x 80 x 58 mm. Meets European standards for domestic gas alarms (EN50194).