Crestron GLS-OIRLCL-C-CN – Miniature Ceiling PIR & Daylight Sensor, Cresnet

Product Overview

The Crestron GLS-OIRLCL-C-CN is a miniature flush-ceiling passive infrared (PIR) occupancy sensor with closed-loop daylight sensing. It communicates via Cresnet wired bus and installs through a 1-inch diameter ceiling hole, projecting only 0.2 in. (5 mm) from the surface for a near-invisible installation profile.

Product Description

Combining 64-zone PIR motion detection with a 0–1,000 lux closed-loop photocell, the GLS-OIRLCL-C-CN provides both occupancy detection and daylight harvesting feedback to a Crestron control system via Cresnet. Coverage area is 450 sq ft in a rectangular pattern (18.57 × 24.34 ft at 8.2 ft ceiling height), with a maximum ceiling height of 16.4 ft. Vacancy mode and walk-through mode are both supported. Configuration is handled via Crestron Toolbox software or an optional IR remote. The IP64-rated housing withstands light moisture and dust, making it suitable for a wider range of ceiling environments. It is also compatible with XiO Cloud for remote provisioning. Drawing 1 W (42 mA at 24 VDC) from the Cresnet bus, it requires no separate power supply. For ordering and support, visit creationnetworks.net.

Key Features

• 64-zone PIR occupancy detection; 450 sq ft rectangular coverage; max 16.4 ft ceiling height
• Closed-loop photocell daylight sensor; 0–1,000 lux range; 360° hemispherical field of view
• Cresnet wired bus; bus-powered: 1 W (42 mA @ 24 VDC)
• Vacancy and walk-through modes; 15-second grace occupancy period
• Installs in 1 in. (25 mm) diameter ceiling hole; integral compression clips; projects only 0.2 in. (5 mm)
• IP64 rated per IEC 60529; indoor use
• XiO Cloud compatible for remote management
• Dimensions: 1.50 in. diameter × 2.15 in. depth (39 × 55 mm); weight 1 oz (28 g)
• Certifications: CE, IC, FCC Part 15 Class B

Typical Applications

• Occupancy-based lighting control in offices, conference rooms, and classrooms via Crestron Cresnet
• Daylight harvesting in perimeter offices and spaces with natural light sources
• Installations requiring minimal ceiling intrusion (1 in. cutout, 0.2 in. projection)
• Commercial deployments with XiO Cloud management requirements for remote sensor provisioning

Technical Specifications

Frequently Asked Questions

What is the difference between the GLS-OIRLCL-C-CN and the GLS-ODT-C-CN?

The GLS-OIRLCL-C-CN is a single-technology PIR sensor with closed-loop daylight photocell in a miniature 1-inch cutout ceiling mount form factor. The GLS-ODT-C-CN combines PIR and ultrasonic dual-technology sensing for better fine-motion detection in a larger 4.8-inch diameter surface-mount form factor. The GLS-OIRLCL is preferred where minimal ceiling penetration and daylight harvesting are priorities; the GLS-ODT-C is preferred where reliable minor-motion detection (seated occupants) is critical.

Does this sensor require a separate power supply?

No. It draws 1 W (42 mA) from the Cresnet bus. No additional power wiring is needed beyond the Cresnet cable run to the ceiling location.

What is walk-through mode?

In walk-through mode, if a space is occupied for 90 seconds or less, lights turn off 60 seconds after vacancy. This prevents lights from remaining on after a brief transient occupancy such as someone walking through without staying.