The AS-1 CO2 Alarm Station Set consists of the DSD-1 Dry contact station and the AS-5 audible-visual alarm. The AS-1 alarm set can be mounted inside or outside grow-rooms or grow facilities. It will sound both audible and visible alarms in the event where CO2 level goes above normal or safe levels.
 
When paired with the CBA-1, the AS-5 can be linked to either AL-1 or AL-2 CO2 sensors channel, or it can be linked to both sensors for complete redundancy.