This mini hygrometer delivers precise readings efficiently, providing reliable measurements of temperature and humidity. Its compact form-factor ensures quick, accurate readings, allowing users to confidently track temperature and humidity with ease. Ideal for 3D Printing: Monitor filament storage humidity to prevent brittleness, moisture bubbles, and failed prints. Perfect for dry boxes, filament lockers, and print rooms. Great for Gardening: crack humidity levels in seedling trays, propagation domes, terrariums, and indoor plant setups. Helps you maintain the perfect environment for healthy growth. Perfect for Storage: Use it in toolboxes, pantries, safes, and any sealed container where moisture control matters. Front outer diameter: 45mm Rear outer diameter: 41.5mm Depth (total) 16mm Depth (rear part) 14mm