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. .

This multi purpose soil meter is what i needed at this price point. The well-designed angled probe is helpful to probe the soil and read the display without straining. Accurate moisture readings helped me dial in my irrigation perfectly, fixing over/underwatering issues. The insightful pH readings confirmed soil imbalances, allowing me to choose the right amendments. It took the guesswork out of soil management, leading to visibly healthier plants. Easy to use, provides actionable data highly recommend!

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.

Works as I expected it to. Very simple, just push a button to get the pH, temp., moisture or light. Easy to read. Clear directions.

Couldnt get any better. Does what its supposed to do, had it for quite some time and still havnt needed to change the battery. Great tool to have by the Hose! Helped with my Adding Fast Acting Lime to my soil and keeping track!

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.

Accurate and easy to use. Lent it to my neighbor and he bought one too. We have very alkaline soil in Reno and need to monitor the pH for successful gardening.

室内の植物用に購入しました。 単4電池が4本必要です。 説明書は見ずとも土にぶっ刺してボタン押すだけなので直感的に使えるしバックライトもついてて見やすいです。 右のボタンを長押しで電源オフできます。 光量計測もできますが上限が9999ルクスなのでアガベなどのがっつりライト当てて育てるような植物には使えないですね。 パネルライトつけたら一瞬で上限いったので感度はよさそうです。

Good Products

Good quality

Ce testeur 4 en 1 est exactement ce qu’il me fallait pour mieux comprendre les besoins de mes plantes. Il est à la fois simple à utiliser et très complet ! ✅ Les points forts : Lecture claire sur écran LCD : l’écran est bien lisible, même en plein soleil. On voit en un coup d’œil les 4 données essentielles : humidité du sol, température, pH et intensité de la lumière. Multifonction : j’adore pouvoir tout mesurer avec un seul appareil ! Ça m’aide vraiment à ajuster l’arrosage, vérifier si mes plantes reçoivent assez de lumière et même tester l’acidité du sol pour les plantes plus exigeantes. Facile à utiliser : on insère les sondes dans la terre, on appuie sur un bouton, et hop, les mesures s’affichent. Aucun calibrage compliqué ! Idéal pour intérieur comme extérieur : je l’utilise autant pour mes plantes d’intérieur que pour le potager, et les résultats sont cohérents et utiles. Léger et portable : facile à transporter d’un coin du jardin à l’autre sans s’encombrer. Ce petit outil m’a permis d’éviter des arrosages inutiles et de mieux comprendre pourquoi certaines plantes ne se développaient pas comme prévu. Un vrai allié pour le jardinage, que vous soyez débutant ou passionné.

大変使いやすい。ただし、取説が英語であることが難解。