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The Wattstopper DW-311-R-U is a 0-10V dual technology wall switch occupancy sensor for commercial dimming applications at 120/277V, available in red finish. It combines passive infrared (PIR) and ultrasonic detection to control 0-10V dimming drivers and ballasts including LED with a PIR sensing range of 35 x 30 ft and selectable Auto/Manual-ON operation for energy code compliance. Certified UL, cUL, UL 924, RoHS, BAA, and DLC qualified; supports multi-way control from up to four switch locations with adjustable time delay, walkthrough mode, and no neutral wire required.
| Sensor Technology | Dual Technology (PIR & Ultrasonic) |
| Control | 0-10V Dimming |
| Voltage | 120/230/240/277 VAC |
| Load Rating | 1000 W @ 120 VAC; 1200 W @ 230/240/277 VAC |
| Coverage | PIR: 35 x 30 ft (major), 20 x 15 ft (minor); Ultrasonic: 20 x 20 ft (major), 15 x 15 ft (minor) |
| Timer Duration | 5 / 15 / 30 Minutes |
| Features | Adjustable Time Delay, High/Low Trim, Light Level Sensor, Sensitivity Adjustment, Test Mode, Walkthrough Mode |
| Finish | Red |
| Warranty | 5-Year |
| Certifications | UL, cUL, UL 924, RoHS, BAA |
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