REOTEMP 36インチ 庭と堆肥の水分計 ガーデンツール 土壌、植物、農場、芝生の水分テストに最適

This measures current through soil and the least resistance is saturated dirt, not fresh water. This is important if you are trying to calibrate the 10. I like that the probe is strong enough to be able check several spots around my fruit trees. No fear of breaking it. I already decided not to water one zone the first day, That’s why I bought it, so I’m happy.

I bought the Reotemp 24 inch Moisture Meter November 2025. I calibrated it and used it only a few times in the autumn. I was a very helpful tool in the spring of 2026 until it stopped working in early July. I tried to recalibrate it but the setting stays on zero no matter the moisture content of the soil. I did not misuse or abuse the tool. Breaking in less than 8 months since purchasing it is very disappointing. I used it for only 4 months and stored it in a safe place. It was not worth the high price I paid, about $70. I would like to be refunded for the full amount or have a replacement at no cost realizing is might be a lemon.

So far so good! I've used it only one day so far, but it really was convenient with the handle for checking to see that trees and bushes were watered deeply. Hoping it really hangs in there for the future since it has so much promise.

This is a wonderful product! It's quickly become my favorite garden tool. But there is something in particular that I did not understand about how to use it when I bought it. I see now that the manufacturer's product description includes this information, but I didn't really understand it. Now I do. The manufacturer's description includes the following words: "The 0 to 10 scale of the MM24 indicates a relative "wetter" or "dryer". I missed the meaning of that at first. Once I got the meter I figured it out. The 0 to 10 moisture scale is not in some type of universal moisture units. It is a relative scale - relative to some sample soil that you have chosen to calibrate the meter to. The calibration process is easy, it doesn't take more than 2-3 minutes to do. But it is very important. There is a little screw, under a little rubber cap, on the back of the meter. This is the calibration screw. You find (or mix together) some reference sample soil that you feel has a reasonable amount of moisture contained in it for the type of plants you will be using the meter on - not sloppy wet, but not obviously too dry (I used some soil in an outside planter box to calibrate my meter to that I had just watered well and allowed to drain well). With the meter placed at least a few inches into the sample soil, you turn the screw until the meter needle reads "5" on the "0" to "10" scale. Replace the rubber cap over the screw. Your meter is now calibrated to your sample soil. These calibration instructions are actually printed in very small text on the back of the meter. When you test other soils in the future any reading under "5" is dryer than your sample was, and any reading over "5" is wetter than the sample soil was. I have concluded that any reading of between about 3 and 7 are acceptable for the plant I am checking. I think this is a brilliant system. You determine the range of wetness you want for your trees/shrubs/plants. After calibrating the meter to that reference point you are then comparing all other soils to it. If you have dramatically different types of plants (e.g. cactus vs bamboo) you might have to re-calibrate for each of those. My meter is the 24" version. When checking trees, especially two young small ones I have planted during the past few months, I have found it is important to slowly push the meter stem all the way down the 24" inches, while watching the meter during the process to get an idea of how wet the soil is at different depths. Sometimes it is pretty dry the first few inches, but by the time I get about 12" to 15" deep it is registering 8 to 10 on the meter. So I know not to water yet because the tree's root ball was planted 24" deep. Other times it is pretty wet the first few inches from lawn watering, but only registering 2 or 3 on the scale at deeper levels, so I know it is time to water it.

This is a tool that's worth the money. We are replacing our thrid cheap unit from Home Depot with this heavy duty tool. Based on build quality it should last a lifetime. The accuracy is good because they let you start out by doing a definition of what is the "just right" moisture on the meter. And since the meter is facing you it's very easy to read. We like the 24" because we don't have to stoop down to read it. Now that said we had one issue and one suggestion. After removing the tape covering the battery, the battery because dislodged (ittle did we know) so the meter was reading zero all the time. Once I opened it up and saw the batter out of the holder it was an easy fix. I presume the battery was dislodged pullling out the tape or in shipment. Easy fix. While having it open I noticed the potentiometer was very loose. A few turns tightened it up and a drop of loctite made sure it stays that way. Tip to the builder; loctite is your friend.