Walkabout Digital provides parents with accurate,constant monitoring of nursery temperature as well as baby’s sounds. The baby unit constantly displays the nursery temperature on parent’s unit at the push of a button. Walkabout Digital has coded digital data transmission and two channel option to significantly reduce interference. Audible alarm alerts user if either unit has low batteries or parent’s unit is out of contact with baby unit. Belt clip for parent’s unit is provided. Batteries required for portable use. Mains adaptors included. Range 100m