Watt Stopper Ultrasonic Sensors are 24VDC changing gadgets that instantly switch lighting and HVAC systems off when no movement is noticed over a given time period. They sense when an area is occupied and turn lights back on again. Watt Stopper ultrasonic tenancy sensing units utilize the doppler shift concept to discover occupancy. Movement in the controlled area causes a small modification in the shown frequency and amplitude of the broadcast ultrasonic waves. Watt Stopper sensing units then manage lighting systems through Watt Stopper power and auxiliary relay packs. Placement of the sensor is important for proper operation. Watt Stopper sensing units are volumetric sensors and sense motion in a 360 degree pattern. It is best to position the sensing unit so that it has a clear view of all the desktops or work surfaces within the protection area. Also, ultrasonic sensors might false-trigger when challenged by high volumes of air flow. Sensors must be set up a minimum of 4 feet from many supply ducts and a minimum of six feet from horizontal discharge ducts. In addition, do not mount sensing unit within 6″ of power pack. Constantly install the sensing unit on a stiff, vibration-free surface area. When placing the sensing unit make certain the receiver is intended far from nearby wall and toward area to be covered.
- 360 degree
- For lighting and HEATING AND COOLING Control
- Incandescent & Ballasted for 2,000 square foot coverage
- Ultrasonic Tenancy Sensing Unit