Features: Temperature measurement from -20-+70, humidity 20%-95%RH. Portable hygrometer indicates humidity and temperature data on the big sleek screen. Automatically records the highest or lowest temperature and humidity. The housing is made of premium ABS, anti-rust, wear-resistant and available for long life span. / switch for your different needs. Comfort display. Comfort range: When the indoor humidity is at 18C - +26C (+64F - +79F) Specification: Condition: 100% Brand new Material: ABS Color: As shows in pictures Size: approx.8.8*4.7*1.6cm / 3.46*1.85*0.63in Measurement range: Temperature: -20-+70 Humidity: 20%-95%RH Power supply: 1*1.5V LR44 battery(Not Included) Package List: 1* Digital Hygrometer 1* User Manual Notice: Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. Package List 1Temperature measurement from -20-+70, humidity 20%-95%RH. 2Portable hygrometer indicates humidity and temperature data on the big sleek screen. 3Automatically records the highest or lowest temperature and humidity. 4The housing is made of premium ABS, anti-rust, wear-resistant and available for long life span. 5/ switch for your different needs.