Bus signal transmission (S1, S2, GND and +24V);
Switchable real-time concentration display or time display, for monitoring of combustible gases and steams;
Automatic calibration, and automatic tracing of sensor ageing;
Anti-RFI/EMI interference;
Two alarming levels: Low alarm and high alarm, with the alarm values adjustable;
Processing of alarm signals has priority over processing of failure signals;
Automatically monitoring failure; correctly showing the failure location and type;