Products

K85

CO2 PCB K85 measures CO₂ concentration in ambient air, with additional options for measuring temperature and allows flexible connectivity.

Defining attributes

High accuracy
2 analogue outputs
Prepared for: - Terminals Thermistor - Slide potentiometer (Temperature) - Override for forcing ventilation

K85 reuses the core sensor optics from the S8 module, but comes pre-assembled on a robust PCB-board with industrial standard analogue outputs, e.g. 0 to 10V and 4 to 20mA and wide input voltage tolerance with reverse polarity protection.

Pin layout for additional connectors and terminals allow for further options; e.g. thermistor for temperature and potentiometer for temperature offsets. The article is prepared to be mounted in an suitable enclosure as a wall-mounted or duct-mounted transmitter.

Article number	085-0-0001
Operating principle	Non-dispersive infrared (NDIR)
Measured gas	CO₂
Measurement range	0–2000ppm
Accuracy	±40 ppm ±3% of reading (@ 15-35°C, 20-70%RH (non condensing) (For additional tolerances, download product specification)
Operating range RH	<95 % RH
Operation range °C	<50 °C
Warm-up time	≤1 min
Response time	<2 min
Power supply	12 - 24 V
Peak current
Average current	TBA
Communication
Outputs	2x Analogue
Compliance	TBA
Maintenance	Maintenance free
Life expectancy	15 years
Dimensions	88 x 50 x 14 mm (L x W x H)
Weight	25 g
Storage conditions	-20-70 °C