2944 TechGrow, 12009, S-2 sensor 0-2000ppm AUTO calibration (CO2 , light)

TechGrow, 12009, S-2 sensor 0-2000ppm AUTO calibration (CO2, light)

Same as the standard S-2 but with Automatic Baseline Calibration (ABC function)
This calibration is performed to eliminate zero drift of the infrared sensor.
The ABC function is always on as soon as the sensor is switched on.

It is assumed that during the calibration cycle there will be fresh air with a value of approximately 400 ppm in the ventilated room for some time. This makes the sensor
unsuitable for use in closed rooms with high CO₂ values, such as greenhouses.