Each K 100 (W) Gas analyzer can attach up to 2 GE series sensors. For each sensor two limit values can be defined, which operate separate relays. The first is supposed to activate an acoustic signal: by overstepping the limit value the alarm is set off immediately. Manual acknowledgement switches off the relay. The second is supposed to activate the sprinkling system. A delay can be adjusted so that the sprinkling system starts only if the limit value is exceeded for a certain time. This relay can be switched off by digital input: if you connect a door contact, the sprinkling system will be switched off as soon as the maintenance personnel opens the door.