Detectors SE-22D are two-levels detectors determinated for measuring concentration of combustible and explosive gases in range 0-20%LEL. The first alarm level is signalling by the turn-over output relay „alarm 1“ and red LED „ALARM 1“, the second alarm level is signalling by the turn-over output relay „alarm 2“ and red LED „ALARM 2“.

Sensors TS 215K are intended for detetections combustible and explosive gases in measuring range 0-20%LEL. We recomanded to use for processing of these sensors next centrals: SE 127K, SE 128K, SE 184K, SE 194K, CS-484, etc..