DuctWatch IR Gas Detector (PIRDUCT): Advanced Duct Monitoring for Industrial Safety

In industrial environments, monitoring airflows inside ducts is not just a technical detail — it is a vital safety measure. Combustible gases can travel through ventilation systems unnoticed, creating hidden risks that traditional point detectors often fail to capture. This is where the DuctWatch IR from Det-Tronics becomes a game-changer.

More than a standard gas detector, the DuctWatch IR (also known as PIRDUCT) is a specialized infrared monitoring solution engineered to analyze air within ducts, intakes, and enclosures. Its innovative design enhances gas detection sensitivity while reducing false alarms, making it a trusted choice for engineers worldwide.

This guide explains how the DuctWatch IR works, its technical benefits, certifications, and the industries where it makes the difference, and how it connects with broader Gas Leak Detection Systems.

Table of Contents

• What Is the DuctWatch IR Gas Detector?

• How Does the DuctWatch IR Work?

• Key Benefits of the DuctWatch IR

• Typical Applications

• Certifications and Compliance

• FAQ about the DuctWatch IR

• Conclusion: Why Choose DuctWatch IR for Industrial Gas Safety

1. What Is the DuctWatch IR Gas Detector?

The DuctWatch IR is an infrared gas detector specifically designed for duct-mounted installations. Unlike conventional point IR detectors, which monitor only localized air, the DuctWatch IR analyzes airflow directly inside ventilation or exhaust systems.

Its probe, pre-assembled and pre-aligned,  extends into the duct interior, ensuring continuous exposure to moving air. Consequently, it offers superior detection of hydrocarbon vapors, especially in situations where air stratification can reduce the effectiveness of other detectors.

👉 If you are looking for a complete strategy, explore our full guide on Gas Leak Detection Systems to understand how the DuctWatch IR fits within a multi-layered approach.

2. How Does the DuctWatch IR Work?

At its core, the DuctWatch IR uses infrared absorption technology to measure the concentration of hydrocarbon gases in airflow.

• Infrared Beam Analysis: The probe spans across the duct, allowing moving air to pass through the detection chamber.

• High Sensitivity: It is up to six times more sensitive than a conventional IR point detector.

• Continuous Monitoring: Real-time detection ensures that hazardous gases are identified before they spread.

• Built-in Self-Test: Automatic diagnostics confirm sensor integrity and alert operators if optics are obstructed.

As a result, the DuctWatch IR delivers both accuracy and reliability — critical for confined and high-risk spaces.

3. Key Benefits of the DuctWatch IR

When compared to conventional solutions, the DuctWatch IR offers several distinct advantages:

• Increased Sensitivity: Detects hydrocarbon vapors earlier and more reliably.

• Optimized Design: Pre-assembled with a mounting plate for faster installation.

• Retrofit Ready: A direct replacement for point detectors without expensive extraction systems.

• Proactive Safety: Continuous self-diagnostics reduce downtime and improve system availability.

• Cost-Effective: Eliminates the need for complex sample-draw hardware.

💡 Combined with flame detection solutions like the Det-Tronics X3301 and intelligent control platforms such as the Eagle Quantum Premier (EQP), the DuctWatch IR forms part of an integrated safety ecosystem.

4. Typical Applications

The DuctWatch IR is widely used where moving air can transport gas into confined spaces. Typical applications include:

• Gas turbine enclosures

• Gas compressor enclosures

• HVAC air intakes

• Engine compartments

• Ventilation systems in industrial facilities

👉 Learn how different Gas Detection Technologies — including IR, catalytic bead, and electrochemical sensors — are applied across these industries.

5. Certifications and Compliance

Like all Det-Tronics solutions, the DuctWatch IR is built to meet global safety standards. Among its key certifications are:

• FM & CSA approvals for North American standards

• ATEX & IECEx certifications for hazardous areas

• Compliance with NFPA 72 for signaling and detection systems

These approvals ensure global acceptance and seamless integration into regulated industries.

6. FAQ about the DuctWatch IR

What makes the DuctWatch IR different from a standard IR point detector?
It is specifically designed for duct installations, ensuring accurate monitoring of moving air streams.

Can it be retrofitted into existing systems?
Yes. The DuctWatch IR is pre-assembled with an aluminum mounting plate, making it ideal for retrofit replacements.

Does it require complex sampling hardware?
No. Unlike extractive sampling systems, the DuctWatch IR delivers direct duct monitoring without additional costly hardware.

How does it integrate into a complete safety system?
It works as a critical component alongside flame detectors like the X3301 IR³ and fire & gas controllers such as the EQP. Together, they form a comprehensive Gas Leak Detection System.

7. Conclusion: Why Choose DuctWatch IR for Industrial Gas Safety

Ultimately, the DuctWatch IR Gas Detector (PIRDUCT) is more than an accessory — it is a critical safeguard for modern industrial environments. By providing high-sensitivity detection directly in ductwork, it prevents hidden gas threats from becoming operational hazards.

With its proven sensitivity, ease of installation, and global certifications, the DuctWatch IR stands out as the reliable choice for industries seeking continuous protection.

👉 To see how the DuctWatch IR integrates with other Gas Leak Detection Systems, contact our team today.