DEWENWILS Digital Temperature Controller, Heavy Duty 15A/1800W Thermostat Outlet Plug, VA Display Heating Cooling Control Timer, -40℉~210℉, Cyclic Timing/Countdown, for Greenhouse Incubator Homebrew

This digital temperature controller is extremely easy to program and provides precise temperature control within 1/10 of a degree, just as advertised. I use it to regulate the temperature in an elevator room, keeping the hydraulic fluid within a stable 75-85°F range. Setting it up is straightforward—I simply set the low limit to 75°F and the high limit to 85°F. When the temperature falls below 75°F, the heater automatically turns on, and when it exceeds 85°F, the heater shuts off. It has functioned flawlessly every time.The LED display is bright white against a black background, making it easy to read. One amusing detail is that one of the buttons is labeled "Fun" instead of "Run" due to what seems like a misprint. The manual even instructs users to press the "Fun" button to start the program, which gave me a chuckle. However, this minor labeling error doesn’t affect the functionality of the controller at all.While I can’t yet speak to its long-term durability, I’m very satisfied with this purchase so far.

My analog BUNN VP17-1 thermostat has a wide hysteresis and was overshooting and boiling water creating a mess between batches of coffee. @ $50+ dollars I decided to rewire and use an external thermostat. I fit the provide probe with a food grade silicone hose and submerged 255mm into the thermal tank reservoir. Works great and let's me know what is happening inside. Currently overshooting target by 1 degree but cools onto target before next pot is brewed, I suspect the old analog thermostat did worse. Quite happy with a solution 1/3rd of OEM digital feedback allows me to set different Temps based of what style of coffee I am roasting. Of note I could still plug in another appliance below without compromise. Very nice clean installation. Very nice to have a visual indication the temp is the perfect brew temp!

Temperature controller in my yacht club's comercial refrigerator failed and a replacement would have cost $600 or more and taken several weeks to order. Our club Mgr was ready to replace the entire fridge for $6000 but I found this temp controller on Amazon for $20 with next day delivery. Extremely easy to program! I wasn't ready to trust the 1800 watt rating of a $20 controller in a cycling compressor motor load with inrush currents on starting so I wired the controller output thru a solid state relay. Works great! If the relay fails, I can easily swap it with a higher rated relay.

I wanted a thermal switch to run a 1500 watt oil filled radiator in my unheated cellar to keep pipes from freezing. I tried the little yellow cube units with a built in thermal switch and outlet, but I learned that they do no work consistently with high current devices - the current warms them up so they turn off even though the ambient temperature is still low. This unit didn’t cost that much more, has a nice digital readout, and lets you set both the on and off temperatures. I have been using it for about a month to control the 1500 watt heater, and have not had any problems yet -it works fine, and there is no sign of overheating or scorching that other buyers have complained of. I have verified the on and off temperatures with a separate temperature senor.

Worked great for 2 months - then came in to an office at 102 degrees inside due to not shutting off the power. Do not rely on this - dangerous.

Works like it should.

Having the wire to measure we the temp away from the actual heating or cooling unit is great to have. Just wish the wire was a little longer

I am using this to control a mini-fridge. The fridge does not have a built in thermostat and would freeze the contents if the ambient temperature was too low (it is used in an unheated garage). I drilled a hole in the mini-fridge so that I could pass the sensor into the fridge.Super easy to set the temperature.