DROK Electronic Thermostat Controller, DC 6-30V 24V Digital Temperature Control Board -50 to +110 Degree Celsius High Accuracy LCD Digital Micro Temp Control Switch Module with Waterproof Sensor Probe

Quality seems to be good, and it's easy to configure. Wish it could switch to fahrenheit, but it's not a big deal because you set it and forget it. When you cut power to the controller it retains the settings. We're using it to control a small ventilation fan for the electrical compartment in our camper, and it's been working flawlessly! Small size, great value!

It works as it should. Very high quality. Will definitely be shopping the DROK store for more parts.

It works as expected. I like the ease of parameter changing and its accuracy.I drive a small 12V fan for cooling my router, so far no problem. I’d rather keep high voltages and/or currents off this board. Utilize an external relay (with appropriate suppression circuitry) for more demanding loads.

Very easy to use. There are not a lot of programming steps, which makes it good for quick changes. I am using this to control a greenhouse heating mat. There is a mode (heat/cool) set point Temp, temp range, and alarm function. There is also a serial out for communication. I'm only using the temp on/off functions, so I don't know about the alarm and serial details. The only things, I would wish were different is the temp only reads in C, and the display's light is always on. Otherwise, its great for controlling 120V heater mats with minimum fuss.

Can't beat the price for the functionality of this controller but I'm stuck without a functioning system again after having just received my replacement order. I haven't even shipped the first controller that broke within two weeks back yet and the new one is already not working due to probe failure again. I'm just using the controller to turn some fans on and off over an aquarium. I'm coming to the conclusion that the probes do not appear to be waterproof. I've gone to great lengths to protect the controller which appears to work as advertised at least but the probes that came with this replacement and the original order both failed rapidly. The first died within two weeks and was reading 100+ Celsius higher than actual temp overnight. The replacement that arrived Friday was accurate on arrival but was reading 50+ Celsius higher than it should be within two days. The probe tips in both orders were protected and submerged, resting in the edge just under the surface of a saltwater aquarium. The probe just plugs into the board so it's replaceable at least but I don't see a way to order just the probe from the seller. Either way, they shouldn't fail within a couple of days or even weeks of use. If the probes are not really waterproof, please don't advertise them as such. I'll update this review if I get some help from the seller.

I used this for a power supply cooling fan controller in a 3D printer. Easy to program, and works great. I had to work some tweaks with the cover so that it could be mounted to it and still be programmed and read from outside the enclosure, but it worked out well enough as it's not something that needs to be changed much - if at all - once it's set. I would have preferred if the display and operator buttons were arranged so the card could be mounted directly to a panel face, but it is what it is.

Solid unit. Good visual on the LCD screen. Programming good, instructions leave a bit to imagination. Not real clear how to set the hysteresis of the on/off cycle. Light, powers up and stores settings. Handy.

I use this to cycle a 500W heater in my solar battery compartment, as they are outside in the cold. Worked flawlessly the first winter. Hope it lasts years.