This hygrometer is made of sturdy ABS plastic and metal materials, which can withstand a variety of environmental conditions and ensure long term durability and consistent performance in all weather conditions Works on the principle of physical detection without the need for batteries, reducing energy consumption and reducing long-term costs Sustainable choice for environment-loving users Lightweight and easy to carry, this tool is ideal for home gardens, school labs and other scenarios. Users can check soil and moisture anywhere without limiting space Equipped with a high precision sensor and metal probe, this device provides safe measurements to prevent plant growth problems caused by improper water levels. Perfect for indoor and outdoor use This soil hygrometer features a ready-to-use design that requires no complicated setup, allowing users to get accurate measurements within seconds. Perfect for busy gardeners and farmers, Manufacturer: Asukohu