REOTEMP K82-3 Soil Thermometer, 5 Inch Stem, Waterproof, for Seeding and Transplanting Garden Temperature Measurement, 0-220 Fahrenheit

I gave it 5 stars because it does what it is supposed to do. I would not buy again due to not having a sheathe to protect and carry it in and the numbers on it are quite small to read for tired old eyes!

Using this device, I can accurately see what the ground temperature is of my yard is. it is important NOT to use certain herbicides on grass until the ground temperature is 70 or less for 5 days. This thermometer will help you not to make a mistake in early application of sod herbicide. The 5 days is something I read somewhere and so far has proven a reliable measure. This thermometer is excellent for checking that. I would recommend calibrating it by placing in a glass of ice water and seeing that the thermometer shows 32 degrees, the same as the ice water. This can be adjusted with a little nut at the base of the thermometer.

Worked very well in my garden.

Accurate temperature read, works, easy to read and perfect size!

Ordered this soil thermometer and a different brand in order to test the efficacy and correctness of soil temp in my worm bin. Both place soil temp at approximately 70° so I believe them to be accurate.

Once calibrated this maintained accuracy throughout the scale. At first I was having trouble, but I was not inserting the tip far enough to get an accurate reading. There is a dimple on the side of the stem which is the minimum insertion length to get an accurate reading. If you do not have it this far inserted, the temperature will read low and be very slow to respond. It works well for its intended purpose of inserting a deep into soil for a accurate reading. I was using it in a liquid that was changing level. When it dropped below the minimum insertion length the temperature would read lower. For the price, I will not return this and keep it. I'm sure it will come in handy for some application in the future.

Works as intended

No need to get more expensive as these are just as good. As long as you push in by stem I can see these lasting a long time. Dial is clear and digits very easy to read. I purchased 2 and both are less than half of a degree different and matched other ones I have. Out of dirt matched the other air one’s temps. So accuracy is also good enough to me. About 3 seconds to stabilize in dirt direct from air temp, so quick. Nice to have a spare for less than what one costs of others.