Features: Audio-alarm & color-changing reminding. With flexible-head design-, convient for multi-angle view. Soil pH Meter also can quickly help you understand the soil conditions, and quickly helps you specialize in grasping when you need to water your plant, control the pH value-. Accuracy of detecting and analyzing soil moisture and pH acidity, Pass detailed information to conductors to show you accurate values. Small and convenient, easy to carry. lightweight, suitable for home potted plant, also suitable for outdoor testing. Specifications: Material: ABS Probe length: approx 308mm/12-inch Package Includes: 1x 6-in-1 Soil pH Meter note: Please allow 1-3cm error due to manual measurement. please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.