T-Micro CO2 Controller

The TechGrow T‑Micro CO2 Controller is a compact digital unit for monitoring and dosing carbon dioxide in grow rooms. It requires an external TechGrow CO2 sensor (S‑Eco, S‑2 or S‑4, 0–2000 ppm) and automatically switches between day and night via the sensor’s built‑in light detector. The controller measures and displays CO2, adjustable across 300–2000 ppm, and toggles the connected CO2 source on/off through an 8 A relay. Power input is 100–240 V, 50/60 Hz, with automatic 110/230 V detection; internal consumption is 3 W. A 2×8 character display shows current value, setpoint and hysteresis; min/max and calibration functions are included. Package includes controller, mounting kit, 5 m UTP cable and manual; CO2 sensor sold separately.