Digital CO2 Carbon Dioxide IAQ Monitor Controller with Relay Function 4.5m Cable NDIR Sensing Probe for Green House Home, Office, Factory

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 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. Accurate 2-Channel low drift NDIR CO2 measurement , Programmable CO2 control value & zone value allows you to set desired CO2 level for different plants. Has Built-in photo sensor that overrides the CO2 control and shuts off the CO2 device when it senses darkness. 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, Weight: 2.866009406 pounds, Manufacturer: Gain Express Holdings Ltd