BebeSounds Angelcare Movement Sensor & Sound Monitor w/ Two Units

This revolutionary sensor and sounds combination gives you the peace of mind you won't get from a regular monitor, or even a video monitor. A sensor pad fits under the mattress and detects your baby's slightest movement. If your baby is absolutely still for 20 seconds, an alarm sounds. An optional "tick" feature ticks continuously as long as the pad senses movement. Angelcare Movement Sensor & Sound Monitor w/ Two Units