Estimated Delivery between October 19 and October 21.
Six readings from one push into the soil.
Soil moisture, pH, fertility and temperature, plus the light level and air humidity where the plant is standing. The backlit screen sits on a head that rotates 90 degrees, so you can read it while kneeling over a bed.
Rechargeable over USB-C, with two alloy probes. Most useful for the questions people keep guessing at: whether a corner is genuinely bright enough, whether a bed is acidic or alkaline before planting, and whether a wilting plant is thirsty or drowning.
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A rechargeable digital meter that reads moisture, pH, fertility, light, temperature and air humidity from one probe.
Most plant problems come down to soil and light, and both are easy to misjudge. A spot that feels bright to you can be far darker than a plant needs, and soil that looks dry on top is often still wet two inches down.
This meter puts numbers on that. Push the probes in and the screen shows soil moisture, pH, fertility and temperature, plus the light level and air humidity where the plant is standing.
It is most useful for the questions you keep guessing at: whether a corner really is bright enough, whether a bed is acidic or alkaline before you plant it, and whether that wilting plant is thirsty or drowning.
Charge it over USB-C before first use.
Push both probes into the soil, most of the way in, near the root zone rather than at the very edge of the pot.
Wait a few seconds for the reading to settle.
Angle the head to read it. It rotates 90 degrees, which helps when the meter is down in a bed or behind foliage.
Take two or three readings in different spots and compare them. One reading in one place can be misleading, especially in a large pot or a bed.
Wipe the probes clean and dry before putting it away.
The supplier lists six measurements and these ranges:
Soil moisture: 0 to 99%
Soil pH: 3.5 to 9.0
Soil fertility: 0 to 3000 microsiemens per cm
Light: 0 to 100,000 lux
Air humidity: 0 to 99%
Soil temperature: included
Display: backlit LCD on a head that rotates 90 degrees
Probes: two alloy probes
Power: rechargeable over USB Type-C
Model: Yieryi YY-1106
There is one model, so the real question is whether you want a meter with a screen at all.
This one earns its place if you have a vegetable bed or an outdoor garden where pH and fertility actually matter, or if you are trying to work out how much light different corners of your home really get.
If the only question you ever ask is whether a houseplant needs watering, our Bloomly Soil Moisture Indicator answers that with no screen, no charging and nothing to set up.
Consumer soil meters are best used for comparison rather than as laboratory instruments. Watching a number move over weeks tells you more than one absolute reading.
Very dry or very stony soil gives poor probe contact and unreliable readings.
Fertility here is an electrical conductivity reading. It reflects dissolved salts in the soil, not the level of any particular nutrient.
Do not leave the probes in the soil between uses, and dry them before storage.
The head and screen are not made for being left outdoors in the rain.
This is a garden tool, not a water-testing or food-safety device.
Does it need batteries?
It's rechargeable and charges over USB Type-C.
What does the fertility reading mean?
It is a conductivity measurement, 0 to 3000 microsiemens per cm, which reflects the dissolved salts in the soil. It is a general indicator, not a breakdown of nitrogen, phosphorus or potassium.
How accurate is the pH?
The stated range is 3.5 to 9.0. Treat any consumer meter as a guide: take several readings around a bed and look at the pattern rather than trusting a single number.
Can I use it on houseplants?
Yes, and the light reading is genuinely useful indoors for comparing one windowsill with another. Push the probes into the root zone rather than the edge of the pot.
Why do two readings differ in the same pot?
Soil is not uniform, and probe contact varies. That is normal, and it is why taking a few readings and comparing them is better practice than relying on one.
Can I leave it in the garden?
No. It is a handheld meter with an electronic head and a rechargeable battery, so take a reading and bring it back inside.
Why you'll love it
Six readings, one probe. Moisture, pH, fertility, temperature, light and air humidity from a single push into the soil.
Readable where you're kneeling. A backlit screen on a head that rotates 90 degrees, so you can see it down in a bed.
No batteries to hunt for. It charges over USB-C from the same cable as everything else.
Making sense of the numbers
A meter is only useful if you know what to do with what it tells you, and the honest answer is that comparison beats precision every time. One reading in isolation means very little; the same spot measured before and after watering, or two corners of a room measured on the same afternoon, tells you something real.
Light is where most people get the biggest surprise. Our eyes adjust constantly, so a corner that feels perfectly bright often turns out to be a fraction of what a windowsill offers. If a plant is stretching towards the window or losing its markings, measure both spots and you will usually find your answer.
As a starting point for pH: most vegetables prefer slightly acidic to neutral soil, blueberries and potatoes lean acidic, and cabbage and carrots tolerate more alkaline ground. It is worth measuring an outdoor bed before you plant rather than after something struggles.
And keep the moisture reading in perspective. Damp an inch or two down is right for most plants. If the meter says wet and the plant is wilting, the problem is almost certainly too much water rather than too little.
A quick guide for your growing space
Heat
A plant under heat stress is already working hard. Treating or feeding a wilted plant in the middle of a hot spell tends to add to the problem. Water first, let it recover, then come back to it.
Humidity
Damp air keeps leaves wet for longer, and that is when fungal trouble gets its chance. Water at the soil rather than over the foliage, and leave room for air to move between pots.
Frost
Growth slows right down when it turns cold and roots take up much less. Most feeding and rooting products are worth pausing until the plant is clearly growing again in spring.
Small spaces
A pot holds a fixed amount of whatever you add to it, with nowhere for the excess to drain away to. Measure rather than eyeball, and flush the mix through with plain water now and then.
