SensorSwitch CMR PDT Ceiling Motion Sensor — 360° Indoor Occupancy for Commercial Lighting

Overview

The SensorSwitch CMR PDT Ceiling Motion Sensor is a line‑voltage, ceiling‑mounted device designed to automate lighting in commercial spaces. By combining Passive Infrared (PIR) sensing with microphonics in a Passive Dual Technology (PDT) approach, it captures occupancy and activity patterns to help lights respond intelligently while keeping energy use in check.

360° coverage with smart sensing

In a typical office, retail store, or small showroom, the PDT sensor delivers full 360° conical coverage. It is optimized to pick up not only walking movements but also smaller hand or body motions within a 24 ft radial range. The microphonics layer provides contextual clues about human activity across the PIR field, enabling more nuanced responses than a single‑technique detector.

• 360° occupancy detection reduces blind spots in compact rooms
• Overlapping PIR and microphonics improve reliability in mixed environments

Smart filtering for reliable lighting control

Advanced filtering helps prevent false ON events caused by non‑occupant noises or incidental sounds. This feature supports consistent lighting control, minimizing unnecessary energy use in spaces with fluctuating ambient noise.

Installation and integration made simple

The CMR PDT is designed for easy ceiling installation, compatible with ceiling tiles, metallic grids, 3.5" octagon boxes, or single‑gang boxes. It includes mounting hardware and offers push‑button pairing with a green LED indicator to confirm setup.

• One relay provides single‑zone lighting control for straightforward integration
• Ceiling mounting options support grid or box installations with standard hardware

Technical highlights at a glance

Measuring 4.55 inches in diameter and 1.55 inches deep, the unit fits discreetly into ceilings. It operates from −10°C to 60°C and carries CSA certification for safety. The adjustable time delay ranges from 30 seconds to 20 minutes, and the device is designed as a self‑contained relay with no external power pack required.

What this means for your space

For offices, retail environments, and other commercial areas, automated lighting that responds to occupancy and activity can contribute to a comfortable, energy‑aware space without constant monitoring. While results depend on usage patterns, the SensorSwitch CMR PDT offers a practical, no‑guarantee option for smarter lighting control.

Warranty: 5‑year limited warranty.