Accurate pH and Moisture Measurement: Achieve optimum results with this pH and moisture meter; It provides accurate and reliable readings to determine the pH levels and moisture content of different types of soil Versatile and Practical: Suitable for commercial use in vineyards; orchards; field production and lawn maintenance; as well as for home use in gardens; planters and lawn maintenance; This soil moisture meter is designed to meet strict quality Deep Penetration and Durability: The longer and slender 30cm electrode allows for deep penetration into the soil; providing comprehensive measurements; With a waterproof metal electrode/probe and durable construction Convenient and Self-Powered: No batteries required as this meter is self pow Note: To maintain accuracy; it is recommended to calibrate the meter periodically and follow the operating temperature range of 5 to 50 °C (41 to 122 °F)