bayiteDC 12V Fahrenheit Digital Temperature Controller 10A 1 Relay with NTC 10K Sensor

The media could not be loaded. This is exactly as described and worked perfectly the very first time I wired it up. Use case: I had a car audio amplifier under my rear hatch floorboard powering a subwoofer, I think it had far too many overheating cut-outs until it gave up. I replaced that with a larger amp to now power TWO subwoofers, one remained under the floor and the other is in the open area in the back. I installed a 12vdc brushless fan to blow on the underside of the amp, and when I first got everything running, I noticed the fan is a LOT louder than I had hoped, so I bought this temperature switch.I wired it up so that the power to the fan instead went to the temp switch, then the unit's switched leads supplied the (+) 12vdc to the fan. I changed the settings for this video to show what happens when setting "d" is at 2°F and the target temperature is 73°F ... The amp's temp slowly crept up to [Target]+[d] and the fan kicked on and I watched the temp drop to 72.8°F before the fan kicked off. I then let it cycle through one more time to 75°F, fan kicked on, temp continued to creep up to 75.2°F before starting to fall back down, to 72.8°F and fan turned off. That was proof enough that this thing does exactly what I intend, and I now have it set to kick on at 100°F and run until the temp probe reaches 94.9°F (target = 95° and d = 5).The only complaint I have is that the programming is a little convoluted. I did not explore any settings beyond Target, d, and mode = C (for cooling, opposite of H which is designed to switch on a heater to get temps up when the probe gets too cold).I will update this if the unit fails within the first year of use.

This thing is exactly what I was hoping it was. I installed it as a cooling fan thermostat for my pickup. Of course, the internal relay shouldn't be loaded with an 80 watt fan, so I needed an additional relay to set everything up correctly. It reads down to tenths of a degree. The lead for the temperature probe that came with it was plenty long enough to run from inside the cab on the driver's side to the opposite side of the radiator. I wired it up as a ground side switch to reduce wire counts on long runs.I've probably used 5 "automotive" adjustable electric thermostats in as many years, one of each brand I could find. This setup has so far outlasted 3 of them. Doesn't seem to be as sensitive to voltage fluctuations, has a digital readout, and cost less than $20. Of course, this isn't meant to run an automotive cooling fan, and doesn't have an input for the A/C fan like the others do, and requires more complex wiring.Anyways, can be set to run a heater (on when cold, off when hot), a cooler (on when hot, off when cold) adjustable delta T, adjustable trigger temperature (whole degrees), and a warning for too hot/cold (flashing display, no sound).Also, it retains settings when disconnected from power.Update: 6-15-18Still going strong, and I’ve had absolutely 0 problems. Works much better than everything else I’ve tried, and I only have it zip tied to the bottom side of the dash. Plenty enough vibration resistance.

This temperature controller works fine. It is a bit difficult to get setup initially, but I've had no issues with it controlling a fan in an outdoor enclosure.

I am using this device as part of a 12-volt solar/battery powered system in our chicken coop to trigger a ventilation fan for cooling.Thus far it has been in operation for several weeks. So far so good. I will update in a couple months ... or sooner if it quits.Pros:Easy to program ... once you read the Chinglish instructions very carefully.Can be programmed for either heating or cooling.You can program a trigger point with a variance of X-degrees of your target temperature.Ample length of wire on the heat sensor; so I was able to mount the sensor in the hottest part of the coop instead of right next to the temperature controller.Gives a continues digital readout of the temperature. **This may be a "con" if you are going for absolute minimum current draw on your batteries.Measures 1/10 degree increments.Compact and lightweight.Terminals are sturdy.Cons:Very limited mounting options. You either have to cut a project box to very close tolerance to use the tension grips (those orange things in the picture) and slide it in from the front, or fashion your own bracket. At this price-point, however, this is kind of a "nit".There has GOT TO BE Chinese that can translate into better English; or Americans that can do so for them! Instructions, while better than most Chinglish instructions, are still far below what is acceptable in 2016.

Bought this to replace the thermostat in my every fridge. Actually works perfect. Great quality and I can now dial in my fridge to the exact temp!

UPDATE: After submitting the review below I was contacted by the company and offered a full refund or a new product. I took the new product which is now up and running. I hope it lasts longer than the first 2. It is easy to install and program, so it's worth a 3rd try.This unit seems to work fine for a very short period of time. 2 have failed in the past year. This last one only lasted a couple of months. They were installed in a greenhouse and was protected from water and the elements. Time to find something higher quality.

We have a DC refrigerator in our sailboat. The thermostat went out. The company who manufactures the fridge sells replacement thermostats that are nearly identical to this one, for nearly $300. Bought this one instead, fixed the fridge, saved $270 or so in the process. This thermostat was a drop-in replacement, even the wiring was nearly identical. Awesome value.