The SecureSleep Audio Monitor not only allows parents to keep a close ear on baby, but also acts as a room thermometer and a soft glow nightlight. The soft glow of the baby's unit changes colour signifying if the room is too cold, too hot or just right in order to make sure little one is as comfortable as possible during naps and bed time. Features 2.4 digital technology LCD screen on baby's unit clearly reads room's temperature Acts as a soft glowing nightlight Babies unit softly glows to signify too hot red, too cold blue or just right yellow Too cold 21C LED temperature indicator on parent unit Fahrenheit or Celsius option Belt clip on parent unit for extra portability Low battery indicator Sound lights Volume control 198m range