Leviton OSC20-M0W Ceiling Occupancy Sensor 24V PIR/Ultrasonic 2000 Sq Ft

Product Overview

The Leviton OSC20-M0W is a 24V multi-technology ceiling occupancy sensor designed for large enclosed spaces up to 2,000 sq ft. It combines passive infrared (PIR) and ultrasonic sensing to detect both major and minor motion, delivering reliable automatic lighting control in commercial environments. Designed for use with power packs and control systems, it provides adaptive performance based on real-time room conditions.

Key Features & Design

• Functionality: Multi-technology occupancy sensor using PIR for initial detection and ultrasonic sensing for continuous occupancy monitoring
• Installation context: Ceiling-mounted sensor designed for integration with low-voltage lighting control systems and power packs (e.g., Leviton OPP20, GreenMAX, EZ-MAX)
• Notable specifications: 24V DC operation (3-wire), 360° detection pattern, coverage up to 2,000 sq ft, adjustable time delay (30 sec to 30 min), ambient light sensing, auto-adapting sensitivity
• Contractor-relevant details: Outputs a 24VDC control signal for use with external power packs (does not switch loads directly); twist-lock mounting allows easy positioning and adjustment; compatible with standard Leviton control wiring platforms

Performance / Benefits

This sensor improves lighting control reliability by combining PIR-based initial detection with ultrasonic monitoring for sustained occupancy detection. Its self-adaptive microprocessor continuously adjusts sensitivity and timing to reduce false-on and false-off events in real-world applications. The integrated ambient light sensor helps prevent unnecessary lighting activation when daylight is sufficient, supporting energy savings. With 360° coverage and an 8–12 ft mounting height range, it enables flexible placement in offices, classrooms, and open commercial spaces while maintaining consistent and dependable performance.