BG454864104 It's just temperature in your room +humidity, whenever you put it there it shows the temperature and humidity if you take it outside it will show you the temperature outside and the humidity outside a... It's just temperature in your room +humidity, whenever you put it there it shows the temperature and humidity if you take it outside it will show you the temperature outside and the humidity outside and it's a nice projector of time on the wall if you want to see time at night when darkness, so it's projecting all the time and you can choose the angle and how big it will be on the wall so it's nice if you wake up in the darkness you can see it easily time on the wall because of the projector of red light that shows time See More

hannemaster No. only 200-240V