YAMRON 4-in-1 Soil Moisture Meter, Digital Plant Temperature/Soil Moisture Test & PH Meter/Sunlight Intensity, Backlight LCD Display for Gardening, Farming and Outdoor Plants

This is the only digital soil meter on the market. All others utilize a magnetically operated needle, that swings in front of 3-to-5 scales. As a result, the user gets rough estimates instead of actual numbers. . It is also one of the few that requires battery power to operate. An electric charge is emitted into the soil and is received in the probe. A circuit board measures the tiny changes and reports the results in digital form. Many competing devices use no batteries. I wonder how their diagnoses work without electricity? . I took the meter to task on the first day. The initially readings were off. AMBIEN LIGHT measured 0, although the meter was under a grow lamp. SOIL MOISTURE measured 95% - very wet, although the dirt was only moist. . After a "break in period" of one day, I tested again on the second. The features proved accurate. On the TEMPERATURE feature, I measured room air. The temperature was 1F higher than my oven thermometer and room thermostat. . . . Excellent! . To test the PH feature. I wet a face towel with water. It achieved a 7.1 reading - neutral. Water was neutral. . . . . Then, I wet a spot on the fabric with vinegar. The reading was 6.0 - slightly acid. Although vinegar was 4% acetic acid in distilled water, I expected a strongly acid reading. So, the PH feature was off by a half notch. . The MOISTURE feature worked to perfection. It measured the potted soil at 20% - dry. Examining the dirt, the moisture held the dirt in clumps, but it was relatively dry. . The AMBIEN LIGHT feature was good. Three grow lamps shined on my 10 juniper seedlings in pots. Each light source had a 100 watt grow bulb, with a 1700 lux rating. Putting the meter under one, it measured 2640 lux. With the added indirect light from the two other lamps, the reading seemed correct. . In the past month, I purchased three other competing soil meters and returned all. They tested grossly inaccurate, or some of their features were inoperative. . On this product, the features worked to perfection, except for PH - half correct. A second problem was missing the ability to measure FERTILITY. A third problem was the small text on the screen for TEMPERATURE and MOISTURE readings. They were very small. Other than these three shortcomings, I ranked it the best among the many soil meters available on Amazon. . . ------------------------------------------------------------------------------------------------------------------------- . . UPDATE: After two months of usage, the unit became non-functional. First, it no longer showed moisture. Second, one-fourth of the LCD screen went blank. . I contacted the vendor for warranty repairs/replacement. Within an hour, it responded with a request for a video of the unit in action. In compliance, the unit was turned ON. The regular screen appeared, indicating NO PROBLEMS. .

Such a great gift for anyone who loves gardening. It works well and makes it easy to check soil conditions without guessing. Pros: easy to use, helpful for plant care, great gift idea Cons: none for me Would I recommend? Yes—perfect for plant lovers

So far this soil moisture meter has been very good and seems to be accurate. I would definitely recommend it the only thing that I don't particularly care for is that it doesn't have a off button so you just have to wait for it to shut off on its own. But other than that I would totally say that it's a great plant moisture meter. I bought one before this and it was a total piece of junk and I thought maybe it was just a mistake so I returned it and got the same thing again and it was just as bad. It now seems to be off Amazon and I can't even write a review for it. But that's okay because this one is excellent and I would recommend it to anybody who's looking for one.

I use this every week to check my 20 or so indoor plants to see if I need to water them. It prevents over- or under-watering. I can put it down in each pot and adjust the angle of the screen to easily see the numbers. I used to use a dial one; this one is far superior to my old one and worth every penny.

This is a 'pretty accurate' soil pH tester. I read reviews claiming inaccurate pH readings, but this is probably due to user error, unless the unit is defective, which can happen. I was originally getting very low acidity scores in the 3s, but figured out why. The number 1 cause was testing with the lawn soil extremely wet after watering the lawn. Front lawn readings were in the 3s, which was watered. My backyard and several neighbors' dry lawns had more acceptable readings, ranging from 5.3 to 7.5, which is nearer the target zone for lawns. Next, I verified accuracy by testing tap water, vinegar, and ammonia, and each provided expected pH scores. Tap water read 6.9-7.1 (which I was happy to see for obvious reasons), vinegar 2ish, and ammonia tested 11ish, which verifies this device is mostly accurate. While this may not be 100% pinpoint precise, it's definitely good enough to get you moving in the right direction and will assist in reaching the target range for a lawn, which is 6ish - 7ish. To be fair, I can only comment regarding pH testing, since that's the reason I purchased it.

This 4-in-1 soil probe claims to measure moisture, temperature, pH, and light. After testing it alongside an analog probe, I’d say it performs well in two areas, is questionable in one, and underwhelming in another. What it does well: Moisture – Accurate and easy to read. My analog probe uses a 10-point scale, while this one gives a percentage. After recent rain, this probe still showed high moisture in my tomato buckets, which matched the heavy feel of the soil. Temperature – Very helpful. I've been monitoring heat in different colored buckets (thanks to some advice from ChatGPT), and this has helped me take steps to manage soil temperature, especially during flowering and fruit set. Backlit Display – A nice bonus. I usually check plants in the evening, and the digital readout is much easier to see than trying to guess readings on an analog dial. What’s uncertain: pH – Still evaluating. It read distilled water as neutral, which is promising, but it doesn’t match my analog probe. I’ve ordered a third method to verify accuracy. If it turns out to be reliable, it would explain a lot about some of my plants' struggles. What falls short: Light Measurement – Disappointing. The meter maxes out at 9999 lux, which isn’t enough to measure full sun accurately (often 60,000+ lux). It gave the same reading for full sun and shaded areas under 40% shade cloth, so it's not sensitive or accurate enough to guide grow light or shading decisions. Also worth noting: lux measures light visible to the human eye—not necessarily what plants need. Bottom line: This is a good option if you're looking for a combined moisture and temperature probe, and possibly pH once verified. But for measuring light—especially for gardening or grow lights—this isn’t the tool. Ask ChatGPT for better light meter suggestions. UPDATE: I returned it. I conducted a calibration experiment with distilled water, alkaline water, and acidic water (1/2 cup H20 to 1 tbsp of distilled vinegar. I started with the distilled water (which should read 7 - neutral) and the calibration was off from the get-go. My analog probe read it correctly, but the digital read it at 4.2 pH. If you purchase run this experiment to see if the sensor is working for you.

This device is working very well. It is easy to push into moist ground and the head piece moves in a way that makes reading easy.

So cool ! You see the information in under 30 seconds… I was very impressed!We have tested inside plants first. Now for the rain to stop and check out our plants in the garden.

Perfect for my gardens and plants. Easy to read and interpret. It provides the info I need to ensure I have the correct balance for my plants. Nice device!

Works well

精度は良いみたいです。 使いやすいので説明書はいらないです

Good quality

定植圃場の潅水管理の為に水分量を計測したくて購入。正確かどうかはその他水分計と比較していないのでわかりませんが、乾いた圃場、潅水後の圃場で計測結果は変わるので目安として使えそうです。