Simply insert the probe into the soil for readings A user friendly solution for beginners and gardening enthusiasts alike Works effectively across various soil types, from sandy to clay based soil Suitable for agricultural researcher, horticulturists, and home gardeners in various planting environments Operates mechanically without electricity or batteries, reducing waste and maintenance hassles An environmentally choices for everyday gardening needs Make of ABS, this meter is both lightweight and resistant to wear, rust, and damage Perfect for long term use in humid environments like home gardens and outdoor planting The single needle design provides accurate soil readings, eliminating interferences issues common with multi needle meters Ideal for greenhouse gardening and potted plant requiring management, Manufacturer: HZBB