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Dr.meter27CM Soil Moisture Meter, Plant Watering Indicator & Hygrometer Sensor for Gardening Gift, Indoor & Outdoor Plants, No Battery Needed

Dr.meter27CM Soil Moisture Meter, Plant Watering Indicator & Hygrometer Sensor for Gardening Gift, Indoor & Outdoor Plants, No Battery Needed

Q: Why it still reads dry even when I just watered my plant?

I’m having the same problem. I’ve waited and even measured the next day. I can feel the soil is still wet and it reads dry. I don’t get it.

Q: Can I put this item into the water to test the accuracy?

Please could not put this item into the water. Thanks! Here is some notes for your reference, thanks! -Don't measure liquids especially water, it is only used to test the soil moisture. -Choose a soft soil, forbid to force the metal probe into the hard soil. -Please don't put the probe pen for a long time in the soil (no more than one hour), otherwise it will damage the pen. -Don't use the measuring pen near the magnetic material and away from other metal objects. -Don't hold the metal part of the measuring pen by hand. Fingerprints have grease that reduces the accuracy of their measurements. -Don't try to remove the metal tip of the tester. If the tip becomes loose, tighten it clockwise.

Q: Can this be left permanently in a potted plant? Or must it be inserted and then removed each time I want to take a measurement?

It's not entirely accurate to say that it will "melt," but not far off. This device has no battery to insert, but the tip is of a different metal from the long sleeve. Likely the sleeve is copper or brass (a copper alloy), and the tip is probably zinc. When placed in moist soil, the two metals form a difference in electrical potential, essentially a battery. The electrical potential will corrode, dissolving the zinc tip over time. The same mechanism is used in ships, rocks, and bridges: they attach replaceable zinc electrodes to the steel, to make the zinc corrode instead of the steel. If you leave this in the soil, the corroding zinc from the tip will be electrodeposited on the sleeve, reducing the electrical potential, and eventually making the current stop flowing. You will then have to rub the zinc off the sleeve to make the meter work again. Over time the zinc tip would disappear. So, the answer is NO, you can't leave it place. You should get a reading, then remove it from the soil and wipe it clean and dry each time. ...and now you know WHY you have to do it.

Q: Can I use one to take readings on all my plants without having to leave it in

You have to insert it in the plant soil and it will give you the reading right away. You then can take it out and go to the next plant to get a reading. You only leave it long enough to get the reading then take it out. Do not leave it in the soil all the time. That's the way I use it.

Product ID: 195966244

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Details

Colour
Green
Brand
Dr.meter
Product dimensions
10.2W x 4.1H
Item weight
0.17 Pounds
Battery description
No batteries

🌈Color-coded scale for instant moisture clarity

📏27cm probe length for deep soil insight

🔋Zero battery, zero hassle

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Description

🌿 Know your soil, grow your glow!

ROOT SAFE DESIGN - Single probe gently measures moisture without disturbing delicate roots, keeping your plants thriving and stress-free.
INSTANT VISUAL FEEDBACK - Color-coded scale from red to blue makes interpreting soil moisture intuitive, eliminating guesswork for busy plant parents.
ECO FRIENDLY EFFORTLESS - No batteries required—just insert and read. Save money and reduce waste while staying effortlessly green.
PRECISION AT YOUR FINGERTIPS - 27cm probe delivers accurate moisture readings deep in the soil, ensuring your plants get exactly what they need.
VERSATILE INDOOR OUTDOOR USE - Perfect for gardens, lawns, farms, and indoor plants—your all-in-one watering companion for every green space.

The Dr.meter 27CM Soil Moisture Meter is a compact, battery-free sensor designed to provide quick, accurate soil moisture readings via a 27cm probe and an easy-to-read color-coded scale. Its gentle single-probe design protects plant roots, making it ideal for both indoor and outdoor gardening enthusiasts seeking precise watering guidance without any technical hassle.

Specifications

Product Dimensions	33.02 x 10.16 x 4.06 cm; 77.11 g
Part number	S10-V
Material type	ABS
Power source type	Manual
Manufacturer	Dr.meter
Item model number	S10
ASIN	B00PTLGKSQ

Have a Question? See What Others Asked

Why it still reads dry even when I just watered my plant?

Can I put this item into the water to test the accuracy?

Can this be left permanently in a potted plant? Or must it be inserted and then removed each time I want to take a measurement?

Can I use one to take readings on all my plants without having to leave it in

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