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Wireless Passive Infrared Occupancy Sensor, infiNET EX®, Battery-Powered


Crestron Green Light® sensors deliver a powerful and cost-effective solution for reducing energy costs and enhancing the functionality of lighting and environmental systems. The GLS-OIR-CSM-EX-BATT is a low-profile, battery-powered occupancy sensor designed for small areas up to 500 square feet to detect when the room is occupied.

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Key Features

  • Wireless ceiling mount occupancy sensor
  • Passive infrared motion detection
  • 360 degree, 500 square feet (46.5 m2) coverage
  • Half mask and perforated mask included
  • 10-year battery life using included 9 Volt lithium battery
  • Control system integration via infiNET EX® wireless network
  • Vacancy-only capability with grace occupancy
  • Discreet, low-profile appearance

Product Overview

Crestron® occupancy sensors offer a powerful, cost-saving solution for reducing energy usage and enhancing system functionality. As part of a complete Crestron system, they can be used to enable automation of lighting, shading, HVAC, and AV equipment based on room occupancy or vacancy. They can also be used to expand the capabilities of a room scheduling, asset management, or energy monitoring solution through integration with the Crestron Fusion® Enterprise Management service.

The GLS-OIR-CSM-EX-BATT is a battery-powered, passive infrared occupancy sensor designed for ceiling mount installation in small areas up to 500 square feet or 46.5 square meters. It communicates wirelessly with a Crestron control system via the infiNET EX® wireless network, allowing for quick installation without running any wires.

Passive Infrared Occupancy Sensing
Passive infrared (PIR) technology employs a highly sensitive specialized lens that divides the field-of-view into sensor zones. The sensor detects motion when a warm body passes between zones, achieving dependable motion detection with superior immunity to false triggering from vibrations, inanimate objects, or movement in an adjacent corridor. The detection sensitivity is adjustable for optimum performance. Timeout can be set anywhere from 30 seconds to 30 minutes to maintain occupied status during short periods of inactivity. A half mask and perforated mask are included to customize the coverage area.

Vacancy Only Mode with Grace Occupancy
The GLS-OIR-CSM-EX-BATT can be configured via the control system program to sense vacancy only. In this mode, the lighting and other equipment is shut off automatically when a room becomes vacant, but can only be turned on manually. If the lights turn off while someone is in the room, they can be turned back on by simply waving a hand within the 15 second grace period.

infiNET EX® Wireless Technology
Ultra-reliable infiNET EX wireless technology provides steadfast two-way RF communications throughout a residential or commercial structure without the need for physical control wiring. The GLS-OIR-CSM-EX-BATT communicates with a Crestron control system via an infiNET EX wireless gateway, and can function as part of a complete network of wireless sensors, lighting dimmers, motorized shades, thermostats, door locks, keypads, handheld remotes, and other devices.[1]

Ceiling Surface Mount Installation
The GLS-OIR-CSM-EX-BATT includes hardware for mounting to a typical drywall or drop-tile ceiling. When installed, it achieves a discreet appearance against a white ceiling, and may be painted to blend with other surfaces.

  1. The infiNET EX wireless gateway (model CEN-GWEXER, DIN-AP3MEX, MC3, or PYNG-HUB) is sold separately. Crestron infiNET EX wireless technology employs a mesh network topology so each “EX” device on the network acts as a routing node or “expander,” which relays the signals it receives on to other EX devices within range. This effectively extends the total range of the network and provides multiple redundant signal paths for extra reliability. A maximum of six “hops” across routing nodes is allowed, although a maximum of three is recommended. Please note that the GLS-OIR-CSM-EX-BATT and other battery-powered infiNET EX devices only operate as leaf nodes and do not provide expander functionality. If needed, up to five dedicated infiNET EX expanders (model CLW-EXPEX or GLA-EXPEX, sold separately) may be deployed as supplemental routing nodes to fill any gaps in coverage. Up to 100 infiNET EX devices are permitted per gateway, although best practices suggest a limit of 50. Refer to the “Installation and Setup of Crestron RF Products, Best Practices” guide (Doc #6689) for additional guidelines.

This product may be purchased from an authorized Crestron dealer. To find a dealer, please contact the Crestron sales representative for your area. A list of sales representatives is available online at or by calling 800-237-2041.

The specific patents that cover Crestron products are listed online at:

Certain Crestron products contain open source software. For specific information, please visit

Crestron, the Crestron logo, 3-Series, 3-Series Control System, Crestron Fusion, Crestron Green Light, and infiNET EX are either trademarks or registered trademarks of Crestron Electronics, Inc. in the United States and/or other countries. Ultralife is either a trademark or registered trademark of Ultralife Corporation in the United States and/or other countries. Other trademarks, registered trademarks, and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Crestron disclaims any proprietary interest in the marks and names of others. Crestron is not responsible for errors in typography or photography. Specifications are subject to change without notice. ©2017 Crestron Electronics, Inc.

Product Specs

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