Threshold control units
Devices controlling and supplying power to threshold gas detectors, with additional control outputs for external devices
Measurement & threshold control units
Devices controlling and supplying power to threshold & concentration-measuring gas detectors (in passive 4-20 mA) standard, with additional control outputs for external devices
Addressable control units
Devices serving as components for building extensive, distributed, computerized Digital Gas Detection Systems based on an RS485 bus
Additional control and interface units
Devices supporting the control and integration of gas detection systems