This LCD digital Thermometer & hygrometer has a probe, which can test temperature and humidity of some special places. With a probe so you can put it any place you want It was widely used in Aquarium, Poultry, Reptile, Incubator, Greenhouse and etc. Measuring Humidity Range: 10%RH ~ 99%RH Humidity Accuracy: +5/-5%; Humidity Display Resolution:1%RH Batteries not included Delivery Quantity: 2pcs, Size: opening size 46*27mm, external size 48*28*15mm, LCD size 35.7*16.8mm Color: black+white Kind tips 1. Package content: only the above package content, excluding other products. 2. The size is measured manually, please allow 1-2 cm measurement error 3. Due to different displays and lighting effects, the actual color of the item may be slightly different from the color shown on the picture. JINYI