About this article [MULTI-FUNCTIONAL CLOCK] It is not only a clock, but also a digital thermometer, which tells you the temperature of outside and inside. This is your protector. [COMFORT DISPLAY] The clock detects the comfort of the environment and shows you the situation according to the position of the pointer. [INDOOR AND OUTDOOR REPORTER] With the help of outdoor sensor, you will get a clear situation of temperature and humidity of indoor and outdoor. Then with the help of this clock you can choose clothes with more ease. [EASY TO INSTALL] You can install the clock in two ways. You can hang it on the wall or just put it on the table. Every way could save your time. [LIGHTWEIGHT AND PORTABLE] With a size of 13.5*8.0*2.0cm and a weight of 142g, the clock will discreetly become your part of home decoration and helper . Features: Type: Comfort Indicator Material: plastic Color: white / black Indoor: -9.9C~50C / 15F~122F Outdoor: -20C ~ +60C / -4F ~ 140F Resolution: 0.1C / 0.1F Indoor/Outdoor Temperature Sensor: 20%RH~95%RH Resolution: 1% RH Battery: 2 AAA batteries (sensor), 2 AAA batteries (main body) (not included) Sensor transmission frequency: 433.92 MHz Sensor distance: 60m Size: 14.5*9.0*5.5cm/5.7*3.5*2.2"(L*W*H) Net weight: 230.0g / 8.1oz Package: 1 * comfort indicator 1 * outdoor sensor 1 * English User Manual