Sentinel CHHC-4 Total Environmental Controller

The Sentinel CHHC-4 Total Environmental Controller controls all of your growing area conditions accurately and reliably. It has all of the C02 control features of the CHHC-1 and CPPM-1 combines into one unit. It also has the ability to control 3 other devices, a heating device and a humidity device. Records the min and max temperature, humidity and C02 levels.

One of the best features of the CHHC-4 is able to be calibrated by the user with the self calibration feature. Other units must be sent back to the manufacturer to be calibrated.

* *NEW* Green LED lights make this unit very plant friendly * *NEW* Removable combination remote temp, humidity, light level & CO2 probe allows the CHHC-4 to be placed up to 16 feet away
* *NEW* Protective caps to help prevent water from getting into the controller * Monitors and controls CO2 with PPM accuracy
* Also controls 3 other devices, a heating device. a cooling device and a humidity device
* Separate day/night temp and humidity settings. * Records the min and maxi temp, humidity and CO2 levels
* Has 2 separate outputs to control cooling and heating
* Can increase or decrease the amount of humidity in the growing area
* Remote temp, humidity, CO2 and light level sensor