Conventional type Optical DET-C631 Smoke Detector

Model No: DET-C631

Features & Benefits

  • Reliable Smoke Detection: Effectively detects large, visible smoke particles, particularly from slow-burning fires.

  • Infrared Scattering Technology: Employs an internal infrared emitter and receiver housed in a sealed optical chamber to detect smoke density accurately.

  • Low Power Consumption: Utilizes pulsed circuitry to minimize energy use and extend the lifespan of optical components.

  • Electromagnetic Interference Resistant: Internal optical chamber design shields the system from external light interference while allowing smoke particles to enter freely.

🔥 DET-C631 Conventional Optical Smoke Detector

Accurate Smoke Detection for Commercial & Industrial Spaces

The DET-C631 is a high-performance optical smoke detector designed to provide early warning of fire by detecting visible smoke particles in the air. Utilizing advanced infrared beam scattering technology, it offers superior sensitivity to large smoke particles typically generated by smouldering fires involving materials like wood, paper, PVC, and polyurethane foam.

Compatible with most conventional fire alarm control panels, the DET-C631 is the ideal choice for protecting commercial buildings, industrial facilities, and other fire-sensitive environments.


Features & Benefits

  • Reliable Smoke Detection: Effectively detects large, visible smoke particles, particularly from slow-burning fires.

  • Infrared Scattering Technology: Employs an internal infrared emitter and receiver housed in a sealed optical chamber to detect smoke density accurately.

  • Low Power Consumption: Utilizes pulsed circuitry to minimize energy use and extend the lifespan of optical components.

  • Electromagnetic Interference Resistant: Internal optical chamber design shields the system from external light interference while allowing smoke particles to enter freely.

  • Remote LED Output: Supports remote indication via LED to assist with system monitoring and troubleshooting.

  • Wide Voltage Range: Operates reliably between 9.6VDC to 30VDC, suitable for most conventional fire alarm systems.

  • Easy Maintenance & Installation: Lightweight and durable ABS construction makes it simple to install and service.

  • Standard Compliance: Complies with EN54-7:2018, ensuring consistent performance and reliability in fire detection.


🏢 Applications

  • Office Buildings

  • Warehouses

  • Educational Institutions

  • Shopping Malls

  • Hotels & Hospitality

  • Manufacturing Plants

  • Libraries & Archives

Important Note:
Detector placement should be carefully evaluated by qualified engineers or fire protection specialists. Factors such as ceiling height, room configuration, airflow, and material combustibility must be considered for optimal fire detection coverage.


⚙️ Technical Specifications

Parameter Specification
Operating Voltage 9.6 VDC – 30 VDC
Quiescent Current ≤ 65μA
Alarm Current 18–22mA (Typical 20mA)
Remote LED Output Current Max. 20mA
Alarm Indication Red LED (Continuous On)
Normal Indication Green LED (Blinking)
Operating Temperature -10°C to +50°C
Relative Humidity ≤ 95% RH, Non-condensing at 40°C
Maximum Air Velocity 7.6 m/s
Weight 102g (160g with Base DB-6)
Ingress Protection IP42
Material ABS Plastic (UL94V-0 Rated for Flame Resistance)
Color White
Compliance EN54-7:2018

📦 What’s in the Box

  • DET-C631 Optical Smoke Detector

  • Optional Detector Base (DB-6)

  • Installation & User Manual

Payment Guide

Thank you for Shopping with us!

Bank Transfer or ATM Cash Deposit:
You may transfer the total order amount using Online bank transfer from any of your Pakistani Bank Online Portal. Our Bank Account details are as follows:

Bank Name: HBL
Account No: 58517000019103
Account Name: HAC & SONS

Please send an email to sa@hacsons.com with the payment reference number or confirmation once the amount has been transferred.

At HACSONS we believe in making returns hassle free. As longs as the below conditions are met, we will happily take back, at no charge, any product you may be unsatisfied with. Simply lodge a return request from your portal or contact our customer service department to arrange a return.


  • Returns must be accompanied by a copy of the original invoice, stating the reason for the return
  • All returns must arrive in original packaging, unopened and unmarked.
  • Returns will be accepted within 15 days of receiving the product. Any Returns over 15 days are subject to a restocking fee
  • Returns on products bought on promotion or through any discount coupon are not accepted unless the product has manufacturing defect.
  • Shortages or errors must be reported within 7 days of the receipt of the package.