Features:1. Multi-functional, can measure temperature and humidity. 2. Two modes: in and out temperature measuring. 3. MAX & MIN value recording. 4. Large LCD display, clearly to read. 5. C / F selectable, low power consumption. Descriptions:1. Comfortable degree symbol indication. 2. Desk-top placing or wall hanging, easy to install. 3. Apply to home, office, baby room, school, hotel etc. Specifications:Model: HC520 Color: silver Battery Type:1.5V AAA battery(not included) Temperature Range:Inside:-10-50(14-122) Outside:-50-70(-58-158) Temperature Accuracy:-20-60:0.1 (0.1) Other:2 Resolution:0.1 /0.1 Humidity Range: 20-90%RH Humidity Accuracy: 5%RH Resolution:1%RH Weight:67g Size:96 x 74 x 18mm Package Informations:Package Size: 168 x 120 x 40mm/6.61 x 4.72 x 1.57in Package Weight:110g/3.89oz Blister Package Package Included:1 x Humidity Temperature Meter 1 x User Manual