Achieve optimal CO2 conditions in your room with the TechGrow S-2 ABC 2,000 ppm Sensor. This sensor accurately measures the CO2 concentration in buildings such as offices, schools, daycare centers, hospitals and storage rooms using a non-dispersive infrared sensor (NDIR sensor). 

The S-2 ABC 2,000 ppm Sensor is equipped with an automatic reference calibration (ABC function). This calibration is performed to eliminate zero drift of the infrared sensor. The ABC function is always active as soon as the sensor is connected. It is assumed that fresh air (approx. 400 ppm) will be present in the ventilated room for some time during the calibration cycle. This makes the sensor unsuitable for use in confined spaces with high CO₂ concentration levels, such as greenhouses. 

In addition to the ABC function, the S-2 ABC 2,000 ppm Sensor has a manual calibration function that allows you to calibrate the CO2 sensor in fresh air to 400 ppm, if required (this calibration menu can only be accessed via a CO2 controller). To prevent unwanted calibration, the sensor is equipped with a DIP switch. 

The built-in light sensor allows automatic switching between day and night mode. If desired, you can manually set the light sensor to a seamless daytime mode using the additional DIP switch. 

The S-2 ABC Sensor 2,000 ppm is compatible with the T-Micro CO2 Controller and the T-1 Pro CO2 Controller from TechGrow, and can be adjusted in 10 ppm steps.

Features of the s-4 Sensor auto calibrate  (0-2000ppm)

• Measures the CO2 concentration in your room. 

• Detects light via the built-in light sensor 

• Allows automatic switching between day and night mode 

• Possibility to manually set the built-in light sensor to a seamless daytime mode 

• Automatic reference calibration (ABC function) 

• Manual calibration and CO2 sensor test. 

• Calibration with calibration gas (only by TechGrow) 

• Highly accurate measurement by NDIR sensor (non-dispersive infrared sensor) 

• Measuring range: 0 – 2,000 ppm 

• Adjustable in 10 ppm steps. 

• Measuring rate: every second. 

• 1 UTP port 

• Compatible with T-Micro and T-1 

• Not suitable for use in greenhouses.