Ultrasonic Occupancy Sensors
Ultrasonic occupancy sensors generate high frequency sound waves beyond the capacity of human hearing. Movement in the sound wave field causes a change in wave frequency and the sensor responds by switching on area lights. When the change in frequency is no longer detected after a delayed-off time, the sensor turns off the lights.
Ultrasonic sensing technology provides highly accurate small-motion detection. They do not relay on line-of-sight sensing and are, therefore, more effective in sensing motion around corners and in cubicles. They are particularly appropriate for locations where only small amounts of motion are taking place.
Item No. UW100-W$82.95PER ITEM
Item No. W-1000A$99.95PER ITEM
Item No. W-2000A$119.95PER ITEM
Item No. WT-2250$132.00PER ITEM