It has a sensorHanging and standing/wireless transmission/open transmission distance 100 meters, effective distance 30 metersTouch the keys to increase the fun of clicking Alarm clock function, button (SNZ) snooze for 5 minutesYou have your choice of three colors.It can be used in pet house, bedroom, bathroom, living room, kitchen and many other places.Small and light, save space, easy to carry.Product color: Wood grain/classic black/WhiteProduct weight: weather station :224g, sensor :34gProduct size: weather station :13.5*13.5*3cm, sensor :3.4*2*9.2cmScreen size :6.1 Package includes :1* hygrometer (not including other display items)The actual color of the item may vary slightly due to the brightness of the display and the brightness of the lightsDue to different measurement methods, please allow an error of 1-2cm.