This LCD digital temperature clock which can display indoor/outdoor temperature 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 temperature.Features:Display indoor/outdoor temperature and time at the same time.Adopt wireless technologyyou can know outdoor temperature in indoor receiver.Record max/min indoor and outdoor temperature.12H/24H time format, / temperature unit for selection.Can be placed on the table or hung on the wall.With portable transmitter to sensor outdoor temperature and transmit within 100m without obstacle.Powered by 2 1.5V AAA batteries(Not included).Specifications:Material: ABSColor: Black Display: 94 * 54mm LCD DisplayIndoor Temperature Measuring Range: 050 / 32122Outdoor Temperature Range: -2070 / -4158Temperature Accuracy: 1Indoor Temperature Detection Period: testing once 30 secondsOutdoor Temperature Detection Period: testing once 57 secondsFunction: Time Display, Indoor/Outdoor Temperature, / Switchable, 12H/24H time format, Separated TransmitterBattery of Transmitter: 2 * 1.5V AA Batteries(Not Included)Temperature Clock Power Supply: 2 * 1.5V AAA Batteries(Not Included)Size of Transmitter: 130 * 40 * 22mm / 5.12 * 1.57 * 0.87inHygrometer Clock Size: 150 * 86 * 23mm / 5.91 * 3.38 * 0.91inTransmitter Weight: 47g / 1.64ozTemperature Clock Weight: 122g / 4.30ozPackage Size: 16 * 14 * 3cm / 6.30 * 5.51 * 1.18inPackage Weight: 259g / 9.12ozPackage List:1 * Temperature Clock1 * Transmitter1 * User Manual