UCTRONICS -30-800 Degree Centigrade Digital Temperature Meter Blue LED Display K-Type Thermocouple Temp Sensor 2-Wires Reverse Polarity Protection with Black Case

Works nicely so far on my 3d printer enclosure. It's a little slow to react to temp changes but gives stable readings. Also note that this particular blue color would be bad for outside lighting. The display is good size and easy to read. I recommend it for indoor use as long as you don't need fast reaction time.

Got this yesterday so I can monitor the temperature of my sailboat engine. Haven't hooked it up yet, but did some testing with it around the house with a 12v converter and it seems to work well. Very responsive to temperature changes. Bright, easy to read display. Very simple to hook up.Would give it 5 stars if it would output in Fahrenheit. It's pretty cheap, so I understand the desire to keep product cost low. But I'd pay $5 more if it did. It doesn't matter for my need, there is a maximum temperature that the engine should run out, so it's a one-time conversion.

I've always wanted to put a thermocouple on my woodstove to monitor the catalytic combustor performance. Up until I found this unit, I would have had to spend over a hundred dollars for the range and accuracy of this little gem. The display is indeed dim, but it's perfect for my application. I don't want a bright, distracting LED lighting up my living room when I'm watching a movie. But, I do want to know when it's time to add a log to the fire without having to get up and look closely at the catalyst thermometer. It's not exactly right over the range of temperatures. (Either that, or the two bi-metallic thermometers I've been using over respond at 1200°F, but it is close enough and consistent enough for me to know the state of the burn at all times. And for one-tenth of the price? I couldn't be happier.

Purchased this unit to monitor the print bed temperature on a 3D printed. Worked fine initially but now the first digit of the display only shows a dash (-) and not the number. It should read 53.0 but it looks like -3.0. Disappointed to say the least.

I used the thermometer to read and display the temperature inside a 3D printer enclosure. It works great, was easy to set up. It's plenty bright enough to use indoors, but probably not in direct sunlight.

Works but the display is hard to see in most light

Item reads within a few degrees C of my Fluke with a K type thermocouple. Not too bad accuracy-wise. If you need a very accurate thermocouple meter, look elsewhere. However, it's a little dim. In a well lit room, it's not easy to read.

Measure at -.6 C in ice water which is plenty accurate for me. Changed the probe to a smaller type K thermal couple for faster response on small objects and it works great. Much cheaper than alternatives.

Ordered two. Both measure temperature well within the "promised" 0.3C when compared between themselves and to a high precision lab-grade thermometer (test done with 40C water, this does not guarantee the same precision at substantially different temperatures).The problem is that one of them runs up and down the scale in the decimal (0.1C) value like crazy. This is non-stop and frankly annoying.So one gets 5* and the other 1 or 0 * for an average of 3. Too bad there is not better quality control for this otherwise good product.

I recieved a burned product

Temperature display for beaker bath. To display water temp in hot water tank.