KET-WGD-810 Independent Combustible Gas Detector·D01·measurement range: 0~100%LEL·operating voltage: AC220V / 50Hz·operating current: monitoring current 4mA, alarm current 10mA·detection gas: natural gas·an independent sounder strobe alarm function·encoding mode: the controller is automatically assigned during the network·communication mode: 470MHz FSK encoding bidirectional communication·alarm set point: 8%LEL·output mode: a set of DC9V active pulse output·communication distance: <=700m·sensor life: 5 years (typical value)·weight: approximately 105g·dimension: 80mm diameter, 52mm height