SensorWorx SWX-121-D-WH Dual-Tech Wall Sensor Partial Auto-On 0–10V 120–277V White

Product Overview

The SensorWorx SWX-121-D-WH wall switch sensor is a dual-technology occupancy sensor that combines PIR and acoustic sensing to accurately detect presence. Designed for 120–277V line-voltage lighting circuits with 0–10V dimming, it provides Partial Auto-On operation that automatically activates lighting to a reduced level (50%) when occupancy is detected. This device is intended for commercial applications where energy savings and occupant comfort are priorities.

Key Features & Design

• Functionality: Dual-technology occupancy sensing (PIR and acoustic) paired with 0–10V dimming control and Partial Auto-On operation to manage line-voltage lighting loads
• Installation context: Wall-mount sensor designed for retrofit or new installations in standard wall boxes; integrates with line-voltage circuits and dimming control wiring.
• Notable specifications: 120–277V AC operation; dual-technology sensing (PIR + acoustic); Partial Auto-On (50%); 0–10V dimming interface; single-gang wallbox mounting.
• Contractor-relevant details: Enables energy savings through occupancy-based control and dimming; simplifies retrofit projects and reduces unnecessary lighting operation in unoccupied spaces.

Performance / Benefits

In real-world use, the SWX-121-D-WH delivers reliable occupancy detection across typical commercial spaces using dual-technology sensing to reduce false triggers. The 0–10V dimming interface allows compatible drivers to adjust light levels based on application needs, while Partial Auto-On supports energy code compliance and improved efficiency. This combination makes it well-suited for offices, classrooms, and other commercial environments requiring consistent, energy-efficient lighting control.