3-in-1 Soil Tester Meter for Moisture, pH and Light Intensity – Battery-Free Analog Probe for Gardening, Farming and Plant Care

This is a single-unit analog soil testing instrument designed for instant, reliable assessment of three critical growing conditions: soil moisture level, pH acidity or alkalinity, and ambient light intensity. The device operates without batteries or external power—simply insert the probes into the soil to obtain readings in under three seconds.

Physical Specifications

Total length: 260 mm

Head width: 62 mm

Sensor type: Dual stainless steel probe tips with integrated electrochemical and photoelectric sensing elements

Display: Large-scale analog dial with clear numerical markings and directional arrow pointer for easy interpretation

Measurement Capabilities

Soil Moisture: Scale from 1 to 10, where 1–3 indicates dry conditions, 4–7 represents optimal moisture range, and 8–10 signals saturated soil. The reading responds directly to soil conductivity without requiring calibration.

pH Level: Range from 3.5 (strongly acidic) to 8.5 (strongly alkaline), with 7 as neutral. Each plant species has a preferred pH window; this meter helps match soil chemistry to specific crop requirements.

Light Intensity: Measured in lux from 0 (complete darkness) to 2000 lux (bright indirect light). Ideal for determining whether plants receive sufficient illumination for photosynthesis, especially indoors or in shaded areas.

Operational Design

Three-Mode Selector Button: A single push-button switches between MOIST, LIGHT, and PH functions. No tools, apps, or setup required.

Direct Insertion Use: Insert probe tips to root depth for accurate measurement. Clean tips with water after each use to maintain sensor performance.

Durable Construction: Housing made from impact-resistant polymer, probes from corrosion-resistant metal alloy, suitable for repeated field use in gardens, greenhouses, and nurseries.

Practical Applications

Indoor potted plants: Prevent overwatering or underwatering by monitoring real-time moisture

Greenhouse cultivation: Optimize irrigation and nutrient delivery based on pH and light data

Vegetable and fruit farming: Adjust soil amendments to support tomato, strawberry, lettuce, and other crop-specific needs

Floral gardening: Ensure ideal conditions for roses, succulents, orchids, and seasonal blooms

Research and education: Support school projects, citizen science, and small-scale agricultural trials

Care Instructions

Rinse probe tips with clean water after each use and dry thoroughly before storage.

Do not submerge the main body in water. Avoid dropping or striking the dial face.

Store in a cool, dry place away from direct sunlight to preserve long-term accuracy.