Precision Over Distance. Protection You Can Trust.

Ensure fire safety in large, open spaces with the GST DI-9105E Intelligent Reflective Beam Smoke Detector. This device is designed for long-range smoke detection up to 100 meters. It is loop-powered and LPCB-approved. It also includes auto-alignment, onboard laser guidance, and drift compensation for dust or ageing. Whether in a warehouse, industrial hall, or airport terminal, the DI-9105E provides wide-area fire detection with high accuracy and reliability.

GST DI-9105E Intelligent Reflective Beam Smoke Detector – Long-Range Fire Detection with Precision Alignment Technology

Loop-Powered Design: Since it draws power directly from the fire alarm loop, the detector uses energy efficiently and simplifies wiring. This makes it ideal for large-scale setups.
Extended Optical Pathway (5–100 Meters): It can monitor long distances accurately. This feature provides reliable smoke detection over wide areas, making it suitable for high ceilings and large spaces.
Covers up to 1,400 m² Monitoring Area: With a maximum coverage of 14 meters wide and 100 meters long, it is built for detecting smoke across large areas such as warehouses, shopping centres, atriums, and industrial halls.
Integrated Transmitter & Receiver: The combined emitter-receiver design makes installation easier and ensures proper beam alignment. This improves the accuracy of fire detection.
Smart Fire Analysis with Built-in Microprocessor: The built-in microprocessor evaluates fire conditions and system faults intelligently. This enhances detection reliability and reduces false alarms.

Product Description:

The GST DI-9105E Intelligent Reflective Beam Smoke Detector offers a strong smoke detection option for large, open areas where traditional smoke detectors may not work as well or where installation is tricky. It uses infrared beam technology to continuously watch the area by sensing smoke when the projected beam is interrupted and reflected. This ensures quick and reliable fire detection.

With coverage of up to 100 meters, the DI-9105E suits warehouses, atriums, industrial sites, airport terminals, and commercial buildings with high ceilings. Its reflective beam sensor simplifies installation by needing just one mounting point. This means there’s no need for separate transmitters and receivers throughout the area, cutting down installation time while keeping detection performance high.

The DI-9105E includes smart smoke detection features that automatically adjust for building movement, dust buildup, and slight misalignments. These self-alignment and compensation features reduce false alarms and help maintain accurate detection, giving facility managers reliable protection. The system also sends real-time status updates to the fire alarm system, which supports proactive maintenance and quick responses to fire incidents.

The detector’s addressable design allows easy integration into modern fire alarm systems, which improves overall operational efficiency. Its sturdy construction and effective sensing technology make it a trustworthy choice for tough environments, protecting both property and people. By mixing reflective beam detection with easy installation and smart features, the GST DI-9105E Intelligent Reflective Beam Smoke Detector provides solid fire protection while lightening the load for facility management teams.

Tech Specs & Resources

Operating Voltage:	24VDC (18V~28V)
Commissioning current:	≤ 20mA
	Standby current: ≤ 12mA Alarm current: ≤ 22mA
Angle of Adjusting	6°to +6°
	Maximum angular misalignment ±0.5°
Sensitivity Level:	Level 1: 1.3dB Level 2: 1.8dB (factory default) Level 3: 2.3dB Level 4: 2.8dB
Operating Environment:	Temperature: -10°C – +50°C Relative Humidity≤ 95%, non- condensing
Ingress Protection Rating:	IP20 without glue-seal IP66 through glue-seal treatment
Material and Color of Enclosure:	ABS, gray
Dimensions:	206mm X 95mm X 95mm
Weight:	450g

GST DI-9105E Intelligent Reflective Beam Smoke Detector

Loop-Powered Design, Extended Optical Pathway, Covers up to 1,400 m² Monitoring Area, Integrated Transmitter & Receiver, Smart Fire Analysis with Built-in Microprocessor

GST DI-9105E Intelligent Reflective Beam Smoke Detector Datasheet Download

Benefits & Usage of GST DI-9105E Intelligent Reflective Beam Smoke Detector

Long-range smoke detection: Covers up to 100 meters with reliable performance.
Reflective beam technology: Single-unit installation for ease and cost-effectiveness.
Auto-alignment and drift compensation: Minimises false alarms and reduces maintenance.
Addressable design: Compatible with intelligent fire alarm control panels.
Ideal for large spaces: Perfect for warehouses, malls, industrial halls, and transit hubs.