Review on ⚙️ Advanced Walfront STC-3000 Digital Temperature Controller Thermostat: 110V-220V with Sensor & 110-220V30A Capacity! by Michael Bressler

I have several of these and none of them have failed so far and I use them daily for various tasks on my farm. There is also a simple but unknown way to go from C to F and vice versa. When the device is on, just like you hold the lock button to unlock, hold down the gray area between SET and RST for a similar period of time and the device will naturally toggle between C and F after you unlock it. Alternatively, you can just add a powerful relay to offload that controller for more intensive use, which I do in some cases. In my opinion a great device and I can only recommend it. You should keep in mind that if you buy the 10A version, if you use it on anything that draws more than 10A, you will overload it and therefore burn it. For example, a simple heater set to a maximum output of 1500W will draw is, 13 amps, resulting in a 10 amp overload on the device. However, you can use the same heater set low where it is 750 watts on a 10 amp block. You can also use a 10A device with an external 30A relay for more power, but then why not just go with the 30A version. When I use it for big loads I always add a relay . The device in the photo is installed in the wall of my RV and controls my heating and air conditioning where it has been for 3 years and I use my RV all the time. I use a heavy duty relay behind it to make sure there isn't excessive heat or overloading the controller in the wall. You can also see that I set the unit to F using the procedure above.