This LCD digital which can display indooroutdoor and time simultaneously is great for home use. It is suitable for desktop placing or wall hanging. Large LCD display you can easily read the value. Accurate measurement for measuring indoor & outdoor . Features: Display indooroutdoor and time at the same time. Adopt wireless technology，you can know outdoor in indoor receiver. Record maxmin indoor and outdoor . 12H24H time format ℃/℉ unit for selection. Can be placed on the table or hung on the wall. With portable to sensor outdoor and transmit within 100m without obstacle. Powered by 2 1.5V AAA batteries(Not included). Specifications: Material: ABS Color: Black Display: 94 * 54mm LCD Display Indoor Measuring : 0～50℃ / 32～122℉ Outdoor : -20～70℃ / -4～158℉ Accuracy: ±1℃ Indoor Detection Period: testing once 30 seconds Outdoor Detection Period: testing once 57 seconds Function: Time Display IndoorOutdoor ℃/℉ Switchable 12H24H time format Separated Battery of : 2 * 1.5V AA Batteries(Not Included) Power Supply: 2 * 1.5V AAA Batteries(Not Included) Size of : 130 * 40 * 22mm / 5.12 * 1.57 * 0.87in Hygrometer Size: 150 * 86 * 23mm / 5.91 * 3.38 * 0.91in Weight: 47g / 1.64oz Weight: 122g / 4.30oz Package Size: 16 * 14 * 3cm / 6.30 * 5.51 * 1.18in Package Weight: 259g / 9.12oz Package List: 1 * 1 * 1 * User Manual