Soil pH Meter, 3-in-1 Soil Test Kit For Moisture, Light & pH, A Must Have For Home And Garden, Lawn, Farm, Plants, Herbs & Gardening Tools, Indoor/Outdoors Plant Care Soil Tester (No Battery Needed)
Features
Reading display: Can be a digital display for instant, easy-to-read results or an analog needle display.
Portability: Models range from compact, pen-type devices for quick field tests to larger, more robust handheld or benchtop meters for laboratory use.
No batteries required: Some models, like the Kelway tester, are powered by the soil's own electrical properties and do not require batteries, electrodes, or buffer solutions.
Multiple functions: Some advanced meters are 3-in-1 or 5-in-1 devices that also measure soil moisture, light levels, or soil temperature.
Insertion probe: Designed for one-handed use, with some having long, thick probes to measure deeper soil areas.
Automatic calibration: Some digital models automatically re-calibrate every time they are turned on for consistent accuracy.