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.
Powered by 2 1.5V AAA batteries(Not included).
 
Specifications:

Material: ABS
Color: Black
Display: 94 * 54mm LCD Display
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, Separated Transmitter
Battery 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 * 0.87in
Hygrometer Clock Size: 150 * 86 * 23mm / 5.91 * 3.38 * 0.91in
Transmitter Weight: about 47g / 1.64oz
Temperature Clock Weight: about 122g / 4.30oz
 
Package List:

1 * Temperature Clock
1 * Transmitter
1 * User Manual