Indoor Digital Thermometer Alarm 13013020 Digital Thermometer w/ Indoor Humidity, Forecaster, Atomic Clock The indoor console displays temperature and humidity levels indoors and temperature outside The wireless sensor installs just about anywhere The unit monitors indoor and outdoor temperature and indoor humidity, and the handy forecast icons let you know at a glance if it's going to be rainy, cloudy, or sunny based on barometric pressure trends. Includes Radio Controlled or Atomic Clock