*Updated 2021* The Dual Technology Low Voltage Occupancy Sensing Wall Switch is a motion sensing lighting control that is used for energy savings and convenience and utilizes an isolated form-C relay that integrates directly with lighting control, building, and HVAC systems. The ONW-D-1001-SP combines Ultrasonic and Passive Infrared (PIR) sensor technologies to monitor a room for occupancy to deliver maximum energy savings and ensure the greatest sensitivity and coverage for tough applications without the threat of false triggers. The sensor includes self-adaptive technology that continuously self-adjusts sensitivity and time delay in real-time, maximizing the potential energy savings that are available in the particular application. The EcoMeter provides a visual indicator of energy usage, increasing end user awareness and reminding individuals to take control of their lighting to maximize energy savings. HVAC mode allows the load connected to the Form C BAS relay to remain ON when the lights are turned OFF manually.