Includes two handheld parent units as well as a nursery unit. How the Angelcare Movement Sensor Works A sensor pad is placed under the center of baby’s crib mattress on a flat, hard surface. The sensor pad cord passes underneath the mattress entirely, exiting the crib in the corner. It is then plugged into the jack of the nursery unit transmitter. The nursery unit can be plugged into an electrical outlet or it can operate with four AAA batteries. The same goes for the parents’ unit receivers (two parents’ units included).
More Information and Check Price at Amazon.com
BébéSounds Angelcare Movement Sensor w. Sound Monitor w. Two Parents' Units Feature
.