... tracking faults,and indicating faults location and type4.Modifying detector's sensitivity and zero calibration with distance.5.Two ... .Built-in large capacity data memory, It can store fault records, alarm records, on/off records and event records ... humidity:<93%RH( incondensable),Pressure:86kPa~106kPa Detector model AT0501AH,XP2000 Alarm controller with competitive price for gas monitoring system