Reflective Beam Proximity Switch This sensor switch is well suited for users with poor control of their movements. It can be mounted on a chest plate to detect up and down head motion. Any motion into the beam will activate the switch. A red light indicates activity. Mounting hardware is included. Sensing range is adjustable from 2 to 8 in. Size of 2 1/8 L x 3/4 Diameter in. Requires Power Control Module 1 for one switch or Power Control Module 4 for two switches. More information about the switches that we sell | 
