Extendable smoke switch control unit for all GEZE hold-open devices
 
Telescopic function for bridging overhangs of up to 30 mm
Connection to 230 V power supply and 24 V DC supply of the hold-open device
Voltage supply of the hold-open system is interrupted in the case of an alarm and the doors close
Integrated smoke switch with automatic adaption of the alarm threshold
Compensates for light contamination of the smoke chamber and thus increases the service life
Visual display of the current control unit status
Additional smoke switches can be connected