This is an easy-to-use instrument to test the salinity in soil, solution media and so on. It has alloy probe and is accurate and fast, can be widely used in greenhouse, farm, garden, orchard, etc. Features: Easy, accurate, fast and to use. Put the electrode into soil or hydroponics nutrient which is to be tested. High or low EC switchable: slide the "ms/s" switch to change between 0-10.00ms/cm and 0-1999s/cm. Digital screen with backlight, greatly enhances reading experience, 4 LR44 batteries powered (not included). Easily measure soil salinity in greenhouse soil or solution media right on the with this portable soil EC meter. Compact and lightweight, easy storage and portability. Please the electrode with distilled water, and dry the electrode with filter paper. Note: Please read the user manual carefully before use. Specifications: Main Color: White Main Material: ABS and Alloy : LOW: 0-1999s/cm HI: 0-10.00ms/cm Resolution: LOW: 1s/cm HI: 0.01ms/cm Accuracy: ±2 percent F.S Power Supply: 4 x LR44 (Not included) Temperature Compensation: 0-50 Item Size: 215 x 50 x 28mm / 8.46 x 1.97 x 1.10in Item Weight (without battery): 62g / 2.19oz Package Size: 23 x 9.5 x 6cm / 9.06 x 3.74 x 2.36in Package Weight: 145g / 5.10oz Package List: 1 x Soil EC Meter 1 x Small Screwdriver 1 x User Manual (English)