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The Wattstopper DSW-301-W-U is a commercial-grade dual-technology wall switch occupancy sensor rated at 120/277 VAC that replaces standard wall switches and fits behind a decorator wall plate for in-wall installation. Combining PIR and 40 kHz ultrasonic detection across a 180 field covering up to 1,050 sq ft, it supports selectable Auto/Manual-ON operation, DIP-switch time delays of 5/15/30 minutes, adjustable light level sensing (8180 fc), walk-through mode, and a selectable audible alert for impending shutoff. Listed to UL, cUL, FCC Part 15, RoHS, and BAA compliant; USA manufactured; 5-year warranty. White finish.
| Voltage | 120/277 VAC |
| Load Rating | 1000W @ 120 VAC, 1200W @ 240/277 VAC |
| Sensor Type | Dual Technology (PIR + Ultrasonic) |
| Coverage | 1050 sq ft, 180, 4 ft mounting height |
| Features | Auto/Manual Selectable, Adjustable Time Delay, Light Level Sensor, Test Mode, Walkthrough Mode |
| Timer Duration | 5/15/30 Minutes |
| Finish | White, Gloss |
| Certification | UL, cUL, DLC Qualified, BAA Compliant |
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