Display indoor / outdoor temperature and time at the same time Record maximum maximum indoor and outdoor temperature Adopt wireless technology, you can know the outdoor temperature in the indoor receiver. With the hand-held transmitter at the outside temperature of the sensor and transmit within 100 m without obstacle. 12H / 24H format, temperature unit / unit for selection. Can be placed on the table or hung on the wall. Product description This LCD digital temperature clock which can simultaneously display indoor and outdoor temperature and time, is ideal for home use. It is suitable for layout or wall mounting. Large LCD display, you can easily read the value. Precise measurement to measure indoor and outdoor temperature. Features: Material: ABS The black color Display: 94 * 54mm LCD screen Indoor temperature measurement range: 0 ~ 50 / 32 ~ 122 Outdoor temperature range: -20 ~ 70 / -4 ~ 158 Temperature accuracy: 1 Indoor temperature detection period: test once 30 seconds Outdoor temperature detection period: test once 57 seconds Function: time display, indoor / outdoor temperature, / Switchable, 12H / 24H time format, separate transmitter Transmitter battery: 2 * 1.5V AA batteries (not included) Temperature clock Power supply: 2 * 1.5V AAA Batteries (not included) Transmitter size: 130 * 40 * 22mm / 5.12 * 1.57 * 0.87in Hygrometer Clock size: 150 * 86 * 23mm / 5.91 * 3.38 * 0.91 in Transmitter weight: 47 g / 1.64 oz Temperature Clock Weight: 122g / 4.30oz Package size: 16 * 14 * 3cm / 6.30 * 5.51 * 1.18in Package weight: 259g / 9.12oz Package list: 1 * Temperature clock 1 * Transmitter 1 * User Manual