FAQ - Controllers 
          
          24. 
          
What are "Latching" and "Non-Latching" alarms? 
        
        Latching alarms means that if the alarm activates and subsequently the gas condition returns to normal, the alarm will remain latched until the RESET button is pressed. Non-Latching alarms reset automatically.
          Each alarm can be selected as latching or non-latching in Setup Mode. Please refer to the instruction manual for further details.