🌡️ DROK Micro Digital Thermostat DC 12V: Temperature Controller Board with One-channel Relay and Waterproof Design Review

Works very well, temperature is ok! I used it for my portable hot water circulating system and it worked flawlessly. I made an acrylic cover to protect it.

I ended up using it as a home thermostat for about a week. Batteries leaked all over the circuit board of my regular thermostat and completely destroyed it. So I plugged it into a 9V DC outlet and set it to heat up and oscillate around 0.6C. It worked perfectly.

This thermal switch works. You just have to know how to connect it. I recommend first connecting the relay switch (terminals K0 and K1) to the load circuit and then sharing the 12V supply (red and black alligator clips) between that circuit and the 12V and GND sockets of the thermostat.

Flawless always on button use mine for beer fermentation chiller has all the settings you need just missing minor pun there temp could probably be longer but you can solder more wires, I bought another in case of breakdown but this one has been working day and night for more than 2 months, excellent work and all 12 volts

Mount works well in car radiator (replaces spirited analog control). The product was delivered without documentation. By default, it is read in degrees Celsius. It would be nice to be able to swap out the terminal block and/or display to optimize the configuration. The relay is much taller than the display and causes legibility issues when placed flush in the case. It's nice to have tenths of a degree.

Assembly works well in car radiators (replaces temperamental analog control). The product was delivered without documentation. By default, it is read in degrees Celsius. It would be nice to be able to swap out the terminal block and/or display to optimize the configuration. The relay is much taller than the display and causes legibility issues when placed flush in the case. It's nice to have tenths of a degree.

I bought this little thermostat to control the cooling fan in our entertainment closet in our RV. This can be a harsh environment for electronics. If the vehicle is parked without occupants, the internal temperature may rise sharply, and even if there are occupants, heat build-up in the cabinet may damage the equipment. I wanted to add a small fan to improve ventilation in the cabinet and cool the equipment. This thermostat fully meets this requirement. My only slight disappointment is that it…

Nice little thermostat. The funny thing is that the instructions are in Chinese. You can go to Youtube and search for the model number XH-W1209 to find a video with a little description of how it works. Since it's listed as a 12vdc thermostat and operates at around 12vdc, I wrongly assumed that power for what I'm controlling - the 12vdc fan - is supplied internally. No, that is not so. The board has 4 terminals labeled +12V, Gnd, KO and K1. You apply 12 VDC to the "+12 V" terminal and the…