YAMRON 4-in-1 Soil Moisture Meter Digital Plant Temperature/Soil Moisture Test & pH Meter/Light Intensity with Backlit LCD Display for Gardening, Agriculture, Outdoor Plants

説明書が英語で困ったと書いてありましたが 難なく使えました

買って良かった。応答が速い。土壌に刺して数秒後には数値が表示される。PH、地温、湿度も信憑性がある、少なくても、対処の基準になる。

家庭菜園を妻が始めたので土壌の状態を知るのに使ってみました 精度は合ってるのかはわからないが、目安程度なら使えると思う

地温、pH、水分量がしっかり測れる優れものです。これで太陽光からさらにいいのですが

難しい冬の間の水やりが「勘」に頼らず数値で確認出来るので間違いをおかさず安心してお世話できます！日本語の説明は無いですが電池を入れてスイッチ押したら誰でも分かります(笑)表面では無くしっかり奥まで差し込んで水分量を測れるのも嬉しいです！

電池を受ける電池バネが付いていませんでした。（真ん中2本の下） そのためもちろん電池が入らず、機能しませんでした。残念ですが返品しました。

すぐに計測できる。他の機器と照合してもほぼ同じになる。

PHを調べたくて購入 心配していた土壌がPH8-9だったので慌ててピートモスを購入、試しにピートモスを測ってみるとph3-4.5のピートモスの値が8.5で表示されました。 新品の腐葉土などはちゃんとph7で表示されたので、大丈夫とは思っていますが、少し不安な所があります。

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. .

The device calibration is suspect. It is roughly indicative but not accurate. Trusting the device which showed soil as wet, I didn’t water but saw leaves drooping…once I watered, leaves were back to life. So soil moisture reading of the device as normal/ wet was obviously not very helpful.

So far good , wondering for how long it will stay good ph metres notoriously go off so will be interesting to see how long it reads ph remotely accurately!

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.

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