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.

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.

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.

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

I've searched long before about this kind of machine which can tell about the plants. This product comes across to me when I search for the grow light. Even 5 kinds of information tell. why not. With over 50 plants, it's hard to track all plant conditions. Yes, it's a Chinese product and not that cheap but it came with quite a detailed manual and explanation of each function. it needs 4 AAA batteries which makes it heavy on the top head part. Recently I got several grow lights and this lux meter is quite useful even though we can use cell phones. The first priority is soil moisture 2 lux, 3 PH, 4 temps, 5 fertility for me know. 1. soil moisture. I am not sure about the correctness, but I can satisfy the speed to check and show the percentage of moist and easy condition levels ( dry_,dry+, nor, wet_,wet+) like. 2. light meter, is also quite detailed about the lux and easy levels(Low_Low+NorHihg_high).. I recently bought several grow lights and this shows most grow lights need closer to the plant which can effective only 1 or 2 plants. Also, additional info for me about the temp, pH, and nutrient level can easily and quickly be checked. and C/F big button is also good. Con? or need to improve?- 1. heavy on top. so it is not easy to check small plant pots. 2. readable .. temps and ph are in the middle with big letters so it easily shows information but it took up space to show other information, i prefer to see moisture and lux but it is a small letter but readable. I hope the size may same or can change will be better. 3. light on/off button? it is also a readable option, I hope it will be good for the light-on mode so I can check without pressing other buttons again. Overall, I am so happy about my purchase of this soil meter.

Good quality

大変使いやすい。ただし、取説が英語であることが難解。