Dr.meter 27CM Soil Moisture Meter, Plant Watering Indicator & Hygrometer Sensor for Gardening Gift, Indoor & Outdoor Plants, No Battery Needed

Really useful tool, helps prevent over watering and killing plants

I am very pleased and pleasantly surprised with this Dr Meter Soil Moisture Meter. It works well and is exactly what's needed to tell if the soil is still damp enough lower down in the plant pot, or if the plant needs watering. Over watering can be a problem, because the soil can look or appear to be dry on top, whilst still actually being damp further down (especially in larger pots), meaning one thinks the plant needs watering when it's actually still ok. To help to ensure that plants are watered correctly, this is ideal. It's could not be easier to use and I am happy to recommend it. I shall be ordering another, so I have one to use in the greenhouse, as well as one indoors for the house plants.

Does what it says on the box

Do NOT under any circumstances submerge the probe in water, especially to test if it "works" as so MANY reviewers have done. It'll just stop working. I have over 100 plants. I use my moisture meter consistently with pretty good success and it's never failed me. Moisture meters are designed to work in soil ONLY and will not provide a reading in water. Leave it in the soil between 30-60 seconds, not longer and NEVER more than 5 minutes as this can corrode the probe, which is sensitive. One thing to keep in mind is the reading will depend on the depth and location of the probe in the soil. Soil might be very moist towards the bottom and dry in the first couple inches. Dry on one side and wet on the other. It all depends on how evenly you water your plants. A lot of the complaints are by people who are not aware of these factors. Different plants have different root systems. Some naturally have shallow roots, while others head straight to the bottom of the pot. So how deep you place the probe is very important. Under normal conditions—and this is likely the problem many are having—mineral salts, coming from fertiliser and tap water tend to build up in potting soil over time. So, unless you re-pot annually, changing the old soil for fresh soil, readings will gradually become less and less accurate. If the soil is heavily contaminated with mineral salts, the meter will always read moist or wet, even when the soil is obviously dry. Also, over time, often in as little as a year, mineral salts slowly penetrate the probe itself, or it may begin to rust and, again, both situations can lead to inaccurate results. Always dry off the probe immediately after use! Moisture meters actually read electrical conductance, not the amount of water present. Water is a good conductor, but air (which is abundant in dry soil) is not. That’s the basics of how a meter works. Remember how air is a poor conductor? Freshly potted plants have fluffy airy soil compared to old pots with compacted soil. That’s going to skew your readings. It's also important to know that because moisture meters work by measuring electrical currents within the soil, soil that has a high salt content will result in inaccurate readings. The numbers given are usually just a scale, not an actual measurement. So you should be checking the output against a specific plant’s water needs, because not all plants need the same amount of moisture. Sometimes a 7 means water, sometimes a 7 means wait. If the needle in the display window is bouncing around and does not settle, the probe could be touching a small rock or piece of metal in the soil. Remove the probe and try again in a different location.

Would buy again! Does its jobs! Just pop it into the soil and it tells you whether the plant needs more water or not!

Gimmick, and it’s just rubbish!

Great piece of equipment, I hadn't realised that you shouldn't leave it in the soil, I was going to order more for other plants but on reading the information more carefully realised you use the one device for all your indoor plants. Fortunately 10 days in the soil doesn't seem to have corroded the device! Lesson learned, read the instructions and don't assume!

Seems to work ok, so far.watr

Bon testeurs d’humidité. Très juste. Ça m’aide beaucoup à savoir s’il faut bien arroser ou pas. Très fiable. Important à en avoir pour ces fleures lorsqu’on a eu un oubli par exemple. Très bon produit je recommande.

I absolutely loved this product! It is very easy to use, highly functional, and gives very accurate moisture readings for my plants. My only minor critique is that I hope the prong could be a bit longer to reach deeper into larger pots. Overall, it is a fantastic tool and highly recommended!

Geeft goed weer hoe vochtig de grond is.

I love this tool! It measures well and accurately. I’ve been able to revive one of my plants just by understanding when to water and when to hold back. Highly recommend this gauge.

Me va genial, funciona muy bien