Center: you can select the desired CO₂ levels you want in the room Zone: hysteresis or dead zone There is an external probe (ppm), with a 4.5 m cable, and a light sensor that stops working at night (not necessary). There is a fuse that protects the controller. You can change the probes for precision as on the first day. Functions of the CO₂ controller min / max (weekly) Display parameters in real time automatic calibration Increase / decrease CO₂ Light detector sensor (photocell): day / night Programmable desired CO₂ levels programmable alarm This controller can be used in two modes: plant mode and human mode. Characteristics of the digital CO₂ controller Measuring range from 0 to 5000ppm Resolution 1ppm (0-1000), 5ppm (1000-2000) 10ppm (> 2000) Accuracy 5% (<3000ppm), 7% (> 3000ppm) LCD screen 47x104mm Dimensions (cm) 15.8 x 10.6 x 5 cm sensor dimensions 12.4 x 3.6 x 2.3 cm Operating conditions 0 to 50ºC / 5 to 95% RH
