Digital Thermometer Temperature Monitor with External Probe for Fridge Freezer Refrigerator Aquarium 4 Pack Black

These are such great value and the temperature measurement is accurate. I used these to help me balance my radiators. They are good quality and the battery life is good.

Bought for going camping to check the temperature inside and outside the tent.They’re perfect for the job. All give the same Reading when in the same place. Work as they should .

Easy to fit in the application I had. A very simple panel mount. However, subjected to the same localised environment i.e. all probes together in a fridge, they vary by a couple of degrees. If it's to keep an eye on the fridge they're ok. For precise scientific processes I think not. But as I said, they're cheap.

Very useful little thermometer, I used the probe to keep an eye on the internal temperature of my 3d printers

I bought these to monitor my central heating system, specifically flow and return from my combi boiler and also to aid with balancing radiators.I was a little doubtful about accuracy/consistency, given the price, but with Amazon to stand behind them I though there was no risk if they were a bit pony. As it turns out I think they are really excellent value and plenty accurate enough over the expected temperature range of use. I've compared them at 20C and they are within 0.5C. At 70C the gap is up to 2C, so just +/- 1C. Happy days!Time will tell how long they last, but nothing to complain about right now (day one).Edit : I've been moving these round the house to measure different heating success within each room and now I've installed three (see photo) to monitor my condensing boiler flow and return temperatures. This data can be accessed through fiddly menus, with lots of button presses, but now I can see everything I need at a glance. Readings match the boiler figures within a fraction of a degree and mostly the difference is down to lag. Stellar performance, especially for the price.Maybe when the outdoor temperatures really drop and the system is working hard I will use them to fine tune radiator balance - that was another thought I had in mind when I bought them - although it seems pretty good already. Accuracy is certainly up to the task.

I needed probe thermometers to monitor the temperature of a fridge used for tortoise hibernation (yes really). As anything below 2C or above 7C is potentially harmful, and cold/warm spots can form in a fridge, a decent degree of accuracy is critical.I calibrated the 4 thermometers in a new fridge, by putting the probes in exactly the same location and monitoring the displays (to see the spread of readings). I was a little surprised to see a 2 degree variance between the highest and lowest. The middle two of four were within 0.5 of a degree of a previously calibrated thermometer so I am using these.They seem reliable and well made, but be careful if accuracy is critical.

There is a spread of 0.5C when you have a bunch of them in the same place.

To get 4 thermometers at this price is amazing value. Out of the four thermometers supplied, one had a reading around 1C higher than any of the others which were otherwise all within 0.2C of each other. When comparing readings with the other thermometers, it seems that the high reading thermometer was an outlier and I am very happy with the other three.