Features: Easy, accurate, fast and steady to use. Put the electrode into soil or hydroponics nutrient which is-to be tested. Digital screen with backlight greatly enhances reading-experience, saving-time and energy, high efficiency. Easily measure soil salinity in greenhouse soil or solution media-right on the-spot with this portable soil meter. Compact-and lightweight, easy storage and portability. The probe is-made of stainless metal, practical and has a-long service-life. Specifications: Material:ABS Size:Approx.28x3.7cm/11.02x1.45inch Package Includes: 1x Soil Tester note: ①Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. ②Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.