1)Especially designed for agriculture equipments such as greenhouse, food and vegetable storages. Real-time detecting CO2 level, temperature and humidity with the loval programmable control. 2)Wall monting, LCD display 3)Carbon dioxide sensor, temperature sensor and humnidity sensor are internal, the three values can be apart set. 4)Non-Dispersive Infrared Detector (NDIR)CO2 sensor, 15 years life time, CO2 setting range is selectable: 0-2000ppm/0-20000ppm 5)Special ABC logic with patented self Calibration Algorithm makes the CO2 sensor used up to 15years 6)Temperature setting range: 5-45. C Humidity setting range: 5-95%RH 7)Provide three relays outputs to control a CO2 generator, temperature device and a humidity devise or a ventilator 8)Special photosensitive sensor detection can make the working mode of the CO2 generator changeover automatically in day and night. 9)Provide brightness adjustment range to make day/night limit setting by end users 10)RS-485 communication interface with 15KV antistaic protection makes the controller being connected with PC(optional) 11)Multiple fuctions, high performance, low price, make it praiseworthly. We also supply other kinds of CO2 controller for agriculture, and we accept the orders against customers' requirement.