Siemens – QPA2002D Room CO2/VOC Sensor, 0…10V, 0…2000ppm

• Maintenance-free CO2 sensing element (depending on type) based on optical infrared absorption measurement Non Dispersive Infrared (NDIR)
• 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