1pcs Hygrometer Mini Power-Free New Accurate DurablePortable Indoor Outdoor Humidity Hygrometer For Incubator Features: Portable size, easy to use and operate High precision, very accurate This hygrometer is excellent for use in incubators, brooders, aviaries and cages They are widely used in greenhouses and any other indoor / outdoor areas, or simply for home use An easy to read water resistant unit that is accurate and durable Product properties: Style: Handheld Usage: Indoor Outdoor Home Use Theory: hygrometer Display Type: Analog Screen Size: 2 0-3 9 inches Model Number: H-50 Item Type: Outdoor Humidity Hygrometer Applications: household / industrial Specification: Material: Plastic Humidity Range: 0% - 100% Packing Content: 1x Power-Free Indoor Outdoor Humidity Hygrometer