I recently changed my greenhouse set up, and have three thermostats that I don't need anymore. One of them is a heating/cooling with separate controls for picking the temp you want for each, heating side for your heater and cooling side for your auto vent or fan system. The temp range choice is from 10F to 110F on both sides. The other two are for heat mats (at least that's what I used them for) with probes for putting into your pot to keep the roots where you want them. These are the pro version, with choices down to 30F and up to 110F. Most cheap ones only go down to 60F. I would like to sell these as a unit if possible, anyone want them here for $75 plus shipping? All of these are straight edison plug versions, no wiring needed.