Soil Moisture Meter – LED Indicator for Plants & Garden
Soil Moisture Meter – LED Indicator for Plants & Garden
Know Exactly When to Water – Every Time
Take the guesswork out of watering with this compact, easy-to-use Soil Moisture Meter. Simply press the button and read the colour-coded LED — no complicated screens, no calibration, no fuss. Perfect for houseplants, garden beds, flower pots, lawns, and farm use, this tool helps you keep every plant at its ideal moisture level.
How the LED Colour Code Works
- 🔴 Red (0%–15%) — Soil is dry; time to water your plants.
- 🟢 Green (16%–60%) — Moisture is at the ideal level; no action needed.
- 🔵 Blue (61%–100%) — Soil is saturated; hold off on watering to avoid over-saturation.
Key Features
- One-touch real-time reading — press the button once to instantly display current soil moisture.
- Continuous monitoring — leave the probe in the soil for ongoing measurement without repeated insertion.
- Splash-proof probe — the stainless probe can be fully inserted into moist soil or water; keep the white housing dry.
- Wide compatibility — works across a broad range of soil types and hardness levels, from sandy loam to dense clay.
- Ultra-low power draw — 10 µA working current means the single 3V button battery (not included) lasts a very long time.
- Lightweight & portable — weighs just 30 g; slips easily into a gardening apron pocket or toolbox.
Specifications
| Material | ABS plastic |
| Colour | White |
| Model | WN1803 |
| Working Voltage | 3V |
| Working Current | 10 µA |
| Rated Power | 0.03 W |
| Measurement Accuracy | ±5% |
| Battery | 1 × 3V button battery (not included) |
| Item Size | 131 × 25.1 × 10.9 mm (5.2 × 1.0 × 0.4 in) |
| Packing Size | 136 × 28 × 15 mm |
| Packing Weight | 30 g (1.1 oz) |
| Country of Origin | Made in China |
What's in the Box
- 1 × Soil Moisture Meter (WN1803)
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Frequently Asked Questions
Q: Does the soil moisture meter require batteries to operate?
A: Yes, it requires one 3V button battery to power the LED indicator. The battery is not included in the package, so please have one on hand before first use.
Q: Can I leave the probe in the soil permanently?
A: Absolutely. The probe is designed for continuous in-soil use, so you can insert it once and check readings whenever you like by pressing the button — no need to remove and reinsert it each time.
Q: Is it safe to use in outdoor garden beds and in rain?
A: The probe (black section) is splash-proof and can be inserted directly into wet soil or water. However, the white host body should not be submerged or soaked in water. For outdoor use in rain, the device should be fine as long as the housing is not fully immersed.
Q: What types of plants and soil is this meter compatible with?
A: The WN1803 soil moisture meter is suitable for a wide variety of soil types — from sandy and loamy to clay-heavy soils — and works great for houseplants, potted flowers, lawns, vegetable gardens, and farm plots.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.