Siemens QPA2000 ROOM CO2 SENSOR 0-10V
Maintenance-free CO2 sensing element (depending on type) based on optical infrared absorption measurement (NDIR1)) Or with VOC2) sensing element based on a heated tin dioxide semiconductor.
CO2 temperature (active or passive) and CO2 humidity-temperature multi-sensor.
No recalibrations required.
Operating voltage AC 24 V or DC 15…35 V.
Signal outputs DC 0...10 V or DC 0...5 V adjustable.
Selectable passive temperature sensing element.