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Environmental Controllers   Green Air Controllers Green Air Integrated Cooling Thermostat & Dehumidistat/4 Outlets [Model CT-DH-1] This CT-DH-1 is designed to turn On and Off exhaust fans and/or intake fans to remove unwanted atmosphere due to heat or humidity. This device is intended as a cooling and dehumidifying control. This controller is ideal for situations where excess heat and humidity need to be exhausted. Internal sensors will allow a 7 temperature comfort zone and a 7% humidity spa(differential) between the time the fans go off and come back on again. When either temperature or humidity exceeds the dial settings, all four outlets will turn ON, activating any cooling or exhaust equipment plugged into the controller. List price $205.00 - 20% Off - Discount price $164.00 Qty:    Green Air Synchronized Cooling Thermostat/Dehumidistat/4 Outlet [Model CT-DH-3] While the CT-DH-3 has many applications, it was primarily developed to be used with CO2 equipment and exhaust type fans. Internal sensors will allow a 7 temperature comfort zone and a 7% humidity (differential) between the time the fans go Off and come back On again. Temperature or humidity raise will activate the right hand outlets and deactivate the left hand outlets. The CT-DH-3 has an internal relay that automatically switches power from the left side (CO2 Outlets) to the right side (Exhaust Outlets) of the unit when either temperature, humidity or both are in excess of the dial settings. Plug the controller into a power surge protector to protect your valuable equipment, and then plug the surge protector into a 110 wall outlet. Set the temperature and humidity to the desired settings. The left side of the controller is normally in the ON position and is able to activate CO2 equipment as needed. CT-DH-3 List price $240.00 - 20% Off - Discount price $192.00 Qty:    With light activated photosensor CT-DH-3P List price $300.00 - 20% Off - Discount price $240.00 Qty:    Green Air CO2 Set Point Controller [Model SPC-1] The CT-DH-4P is designed to be used with CO2 equipment, dehumidifiers, and exhaust fans. While it is similar to the CT-DH-3 it has the added feature of offering independent outlets for temperature and humidity control. It is ideally suited for use with dehumidifiers. Temperature raise will activate the right hand outlets and deactivate the CO2 outlet. Humidity rise will activate the dehumidifying outlet. Internal sensors will allow a 7 temperature comfort zone and a 7% humidity (differential) between the time the equipment goes Off and comes back On again. Plug the controller into a power surge protector to protect your valuable equipment, and then plug the surge protector into a 110 wall outlet. Set the temperature and humidity to the desired settings. The CO2 outlet is normally in the On position and is able to activate CO2 equipment as needed, but is defeated when exhaust function is active. The photosensor will defeat CO2 enrichment during darkness hours. CT-DH-4P List price $665.00 - 20% Off - Discount price $532.00 Qty: