Overview Achieve optimal conditions in your greenhouse with the smart S-4 Sensor 2,000 ppm from TechGrow. This all-in-one sensor measures the CO2 concentration, relative humidity and temperature in your room, and detects light. The built-in light sensor enables automatic switching between day and night mode. If desired, you can manually set the light sensor to a non-stop day mode by means of a DIP switch. General Information The S-4 Sensor 2,000 ppm has a manual calibration function that allows you to calibrate the CO2 sensor in fresh air at 400 ppm, if necessary (this calibration menu can only be accessed via a CO2 controller). To prevent unwanted calibration, the sensor is equipped with an extra DIP switch. The S-4 Sensor 2,000 ppm is compatible with all TechGrow controllers, and adjustable in steps of 10 ppm. Benefits Measures CO2 concentration, relative humidity and temperature in your room Very accurate measurement by the NDIR sensor (non dispersive infrared sensor) Detects light through the built-in light sensor Enables automatic switching between day and night mode Possibility to manually set the built-in light sensor to a non-stop day mode Manual calibration & test CO2 sensor Calibration with calibration gas (only by TechGrow) Measurement range: 0 2,000 ppm Adjustable in steps of 10 ppm Temperature range: - 40 °C to 100 °C Rate of measurement: every second 1 UTP port Compatible with all TechGrow controllers
