Eventherm TH5-20 Thermostat

Works as intended, you may need to calibrate the settings if it's been bounced around in the mail.

This thermostat is very well made and very accurate. Great value for the money!

Used this switch to automatically turn on heat trace for freeze protection on well pump piping and tank. Worked as designed.

Best thermostats that I have used in greenhouse and high tunnels. Can’t go wrong with these. It’s actually a TH-5-20.

Takes a bit of tweaking to get the system working as desired. Be aware that this unit will run heating AND cooling units, but it will switch back and forth at the designated temp in an attempt to keep the temperature right where you want it without a "swing range." Bought a second one so I could have a range between heat and vent in my greenhouse - one set to activate the heater if too cold, the other runs the vent fans when too warm. Good solid unit so far.

I use this to maintain theTemp above freezing with a diesel heater and it works great, unlike the last two controllers from Amazon

Works great.

Sure, you can buy a cheap Chinese plug in temperature control but they are faulty and unreliable.This one, I wired to be able to plug it in wherever needed.It is 100% accurate and dependable for heat or air conditioner. Don't waste money on junk, buy this one and you will know that it's always working properly.