1. Material: ABS plastic 2. Weight: about 101 grams 3. Size: about 14.7x4.9x2.3 cm 4. Measuring range: 10-40% 5. Power supply: 9V battery included 6. Scope of application: Mainly designed for humidity measurement of wood, building materials, medicinal materials, paper, cartons and other materials 7. Features: It will automatically shut down after 3 minutes of inactivity, with low battery display, data lock operation, accurate and quick measurement, LCD display, clear reading, penetrating measurement probe design, four-needle probe, penetrating Stable and durable