Wave Sensor Touchless Switch

When a visitor arrives at the door they simply wave their hand in front of the sensor and the light on the unit will change from blue to green. It will close a switch that then sounds a tone on the intercom so the visitor gets both visual and audible confirmation of success.

The switch can be powered from the intercom power supply if it uses 12 volts DC. Otherwise a separate 12vDC supply should be used. One the power wires are connected, then the RTE_COM and RTE_NO terminals are connected to the intercom. Where these connects depends on the intercom.