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 technology, you 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. Specifications: Powered by 2 x 1.5V AAA batteries(Not included) Indoor Temperature Measuring Range: 0~50℃ / 32~122℉ Outdoor Temperature Range: -20~70℃ / -4~158℉ Temperature Accuracy: ±1℃ Indoor Temperature Detection Period: testing once 30 seconds Outdoor Temperature Detection Period: testing once 57 seconds Function: Time Display, Indoor/Outdoor Temperature, ℃/℉ Switchable, 12H/24H time format Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Material: plastic colour: Black Package Contents: 1 x Thermometer Meter 1 x sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.