3-in-1 Soil Moisture pH & Fertility Meter | Battery-Free
3-in-1 Soil Moisture pH & Fertility Meter | Battery-Free
Know Exactly What Your Plants Need — No Guesswork, No Batteries
The L.AOL.AU 3-in-1 Soil Tester (Model UW-16) is the ultimate companion for indoor and outdoor gardeners. With a single probe and a simple slider switch, you can instantly check your soil's moisture level, pH value, and nutrient fertility — all without needing a single battery. Made in Mainland China.
Three Tests, One Probe
- Soil Moisture (MOIST mode): Readings on a scale of 1–10 with color-coded zones — red (1–3) means dry and needs watering, green (3–7) means ideal humidity, and blue (7–10) means too wet.
- Soil Fertility (FT mode): A color-coded analog display instantly shows if your soil has too little (yellow), ideal (green), or too much (red) nutrient content.
- Soil pH (PH mode): Measures across a range of 0–8 pH — from strongly acidic (0–4), slightly acidic (5–6), neutral (7), to slightly alkaline (8). Perfect for dialing in the exact conditions your plants love.
How to Use
- Insert the probe at least two-thirds deep into the soil.
- Slide the switch to select your desired test mode: MOIST, FT, or PH.
- Wait approximately 3 seconds and read the analog display.
Note: If the soil is extremely dry, lightly moisten it before testing to ensure an accurate reading. The moisture sensor operates correctly within the 1–10 humidity range.
Key Features
- ✅ 100% Battery-Free — eco-friendly and always ready to use
- ✅ Analog Display — easy-to-read color-coded needle gauge
- ✅ No Chemicals Required — safe for you, your plants, and the environment
- ✅ Compact & Portable — ideal for pots, garden beds, raised beds, lawns, and greenhouses
- ✅ Multilingual Manual Included — English, Spanish, French, Dutch, Italian, and Japanese
- ✅ Model: UW-16
Perfect For
Whether you're tending to houseplants, a vegetable garden, flowers, succulents, or a large outdoor lawn, this 3-in-1 tester gives you actionable soil data in seconds. No apps, no batteries, no complicated setup.
Specifications
- Brand: L.AOL.AU
- Model: UW-16
- Display Type: Analog
- Battery Required: No
- Backlight: No
- Functions: Moisture / Fertility / pH
- pH Range: 0–8
- Moisture Range: 1–10
- Origin: Made in Mainland China
For more information on soil health and optimal plant growing conditions, visit the USDA Soil Health resource.
Frequently Asked Questions
Q: Does the 3-in-1 soil tester require batteries?
A: No — the L.AOL.AU UW-16 soil tester is completely battery-free. It uses the natural electrical properties of the soil to generate a reading, making it eco-friendly and always ready to use without any setup.
Q: What pH range does this soil meter measure?
A: This soil pH meter measures across a range of 0–8 pH. It can detect strongly acidic soil (0–4), slightly acidic (5–6), neutral (7), and slightly alkaline (8) conditions. Note that it does not provide readings above pH 8.
Q: Can I use this soil tester for both indoor houseplants and outdoor garden beds?
A: Absolutely. The 3-in-1 soil moisture, pH, and fertility tester is designed for both indoor and outdoor use — perfect for potted plants, garden beds, raised beds, lawns, greenhouses, and more.
Q: Why is the needle not moving when I test my soil?
A: If the soil is very dry, the probe may not get a sufficient reading. Try lightly watering the soil first, then re-insert the probe at least two-thirds deep and wait about 3 seconds. Ensure the probe is clean and fully in contact with the soil for best results.