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*New sales of the Classic controllers have been discontinued due to the supply chain issues. We will continue to support customers with these controllers. Please see details for the ClimateBoss, our current controller that is an upgrade from (and is backwards compatible to) the GHK.
Replace greenhouse thermostats with Bartlett Instrument's two zone environmental controller, designed to be a low cost solution to maintaining greenhouse temperatures automatically. This controller is feature packed; easy to use and install; provides energy cost savings; reduces man-hours spent monitoring greenhouse environments; and can be used to collect statistics for graphical tracking. The features include control of 2 heat steps, 2 HAF, and 4 cool steps; a timer output for irrigation, misting or lights; DIF, DAY, and NITE settings; and an alarm output.
