Luster Leaf 1880 Rapitest Electronic 4-Way Analyzer Standard

Does what it says it will...

Overall this is a very economical tester for consumer use. I feel the need to point out that this device is not intended for commercial use and as such is not going to give you high precision test results. That being said, this device is quite accurate particularly considering the price point. The pH and moisture testing is quite accurate if you follow the instructions and are your bread and butter so to speak. Unfortunately I'm unable to assess the light meter feature at this time as I do not have a precision meter to compare results. Finally the fertilizer meter. Although useful in assessing the overall soil nutrient content, it really isn't of much use other than a guide. I highly recommend using individual chemical tests for N-P-K once a year so amendments can be added appropriately if necessary. Although this product seems to have some production quality issues, I believe many of the negative reviews are due to improper use and care for the device. This device measures conductivity in the soil to determine pH, moisture and dissolved solids. It is critical that the probes be kept clean and dry when not in use as oxidation of the probes will result in inaccurate readings.

Una forma rápida y sencilla para conocer las condiciones del suelo a un buen precio

肥沃計機能に期待して購入。「見えないモノの見える化」で、今後の施肥はバッチリかも・・・

Given the price, you can't expect lab accuracy. It's a good value. A couple of comments: 1 - You need to scrub the probes before using. There is a scrubby sponge in the box. 2 - Succulents are having their day in the sun, but this unit will not work for gritty succulent soil. Not enough soil contact, probably, and certainly you can't make mud of it for pH. 3 - Light is measured in LUX, which is really not a measurement of anything plants need. You can get the same measurement on your cell phone. But a light meter that measures PPFD is quite expensive. LUX can be a good proxy measurement for outdoor sunlight, but for plants under grow lights like houseplants and seedlings, it's pretty useless.