Saylite SS213-FLUOR 155SW Stairwell 4Õ with Ultrasonic Sensor

Our popular 213 series versatile linear fluorescent or LED fixtures are now available with integral ultrasonic occupancy sensor to sense motion within a space and automatically turns on lights even when the sensor has no direct line of sight to occupants. After the area is vacated and the time delay has
elapsed, the sensors automatically turn the lights off. Ultrasonic detection operates by transmitting sound waves throughout an area and measuring the speed at which they return. Movement increases the return frequency, which triggers occupancy. Texas Fluorescents Ultrasonic smart sensors provide functions for testing, overriding the fixture ÒONÓ and a 72 hour lamp burn-in mode.