Wattstopper DT-205 Dual Technology Sensor

Wattstopper's dt-200 series dual technology ceiling sensors combine pir and ultrasonic technologies into one unit to achieve precise coverage in detecting occupancy. Low voltage dt-200 series sensors utilize a Wattstopper power pack to turn lights on when both pir and ultrasonic technologies detect occupancy. They can also work with a low voltage switch for manual-on operation. Pir technology senses motion via a change in infrared energy within the controlled area, whereas ultrasonic uses 40 kHz high frequency ultrasound. Once on, detection by either technology holds lights on. When no occupancy is detected for the length of the time delay, lights turns off. Dt-200 series sensors can also be set to trigger lights on when either technology or both detect occupancy, or to require both technologies to hold lighting on. 24 vdc/VAC and half wave rectified AC • 40 kHz frequency ultrasonic transmission • time delays: auto set, fixed (5, 10, 15, 20 or 30 minutes), walk-through/test modes • sensitivity adjustment: auto set; reduced sensitivity (pir); variable with trim pot (ultrasonic) • built-in light level sensor: 2 to 200 foot-candles (21 to 2,152 lux) • low voltage, momentary switch input for manual operation • dt-200 contains an isolated relay with n/O and n/c outputs; rated for 1 amp at 24 vdc/VAC • 2000 Ft2 of walking motion mounted at 10 ft.; 1000 Ft2 of desktop motion • Max. Dt-200s per power pack: b=2, bz=3 Max. Dt-205s per power pack: b=3, bz=4 • dimensions: 4.4 inch x 3.4 inch x 2 inch (110.3mm x 85.9mm x 49.6mm) L x W x D • UL and CUL listed • five year warranty