Digital CO2 Carbon Dioxide IAQ Monitor Controller with Relay Function 45m Cable NDIR Sensing Probe for Green House Home, Office, Factory

【Smart Controlling】This controller has a built-in photo sensor that overrides the CO2 control and shuts off the CO2 device when It senses darkness.It helps you to Monitor & Controlling CO2 value in Greenhouse or residential. 【Control CO2 Generator】With minimum and maximum CO2 levels. In Plant Mode, when the minimum level is sensed, power is supplied to a CO2 generator or regulator via the output socket. When the maximum level is reached, the power is turned off. Opposite in Human Mode. 【Adjustable Altitude】The monitor can be used in different altitude. You may adjust the current altitude to get precise value. 【Extendable Sensing Probe】Display CO2 chart with adjustable time scale (week/day/hour/min/auto). Sensing probe cable is 4.5 meter long to extend your measure spot 4.5 meter away from display. 【High Accuracy】Accurate 2-Channel low drift NDIR CO2 measurement , programmable CO2 control value & zone value allows you to set desired CO2 level for different plants., Manufacturer: Gain Express Holdings Ltd