Honeywell
Honeywell BW Flex Portable Multi-Gas Detector
Honeywell BW Flex Portable Multi-Gas Detector
Product Overview
The Honeywell BW Flex Portable Multi-Gas Detector is a configurable portable gas detector designed for confined space entry, industrial safety, oil & gas operations, utilities, and marine environments.
Available in two models:
- BW Flex 4 – monitors up to 4 gases
- BW Flex 5 – monitors up to 5 gases, including optional carbon dioxide (CO₂)
The BW Flex platform supports a wide range of sensors including oxygen (O₂), combustible gases (LEL), carbon monoxide (CO), hydrogen sulfide (H₂S), and multiple toxic gases, making it suitable for a broad range of applications.
⚙️ BW FLEX 4 vs BW FLEX 5
🔹 BW Flex 4
- Monitors: O₂ / CO / H₂S / LEL (typical)
- ✅ Industry-standard configuration
- ✅ Cost-effective solution
- ⚠️ Does not support CO₂
👉 Commonly used for:
- Confined space entry
- Utilities and water treatment
- General industrial safety
🔹 BW Flex 5
- Monitors: up to 5 gases including CO₂
- ✅ Expanded gas detection capability
- ✅ Suitable for more complex environments
- ✅ Future-proof specification
👉 Commonly used for:
- Oil & gas and petrochemical sites
- Enclosed or inerted spaces
- Marine and offshore environments
🔍 CO₂ MONITORING (GROWING REQUIREMENT)
Guidance from the International Maritime Organization and frameworks such as the SOLAS Convention have increased awareness around carbon dioxide (CO₂) as a hazard in enclosed spaces.
Why it matters:
- CO₂ can accumulate even where oxygen levels appear normal
- It presents a serious asphyxiation risk
- Increasingly considered in:
- Confined space risk assessments
- Oil & gas environments
- Marine and offshore operations
👉 As a result, many organisations are moving toward 5-gas detectors with CO₂ capability, such as the BW Flex 5.
⚙️ STANDARD CONFIGURATIONS
🔹 BW Flex 4 – Standard 4 Gas
- O₂ / CO / H₂S / LEL (Catalytic)
- ✅ Widely used across industries
🔹 BW Flex 4 – 4 Gas IR
- O₂ / CO / H₂S / LEL (Infrared)
- ✅ Suitable for hydrocarbon-rich environments
🔹 ⭐ BW Flex 5 – 5 Gas with CO₂ (RECOMMENDED)
- O₂ / CO / H₂S / LEL (IR) / CO₂
- ✅ Enhanced safety for enclosed spaces
- ✅ Increasingly specified across industries
🔹 BW Flex 5 – Multi-Toxic Configuration
- O₂ / CO / H₂S / CO₂ / SO₂ (or NO₂ optional)
- ✅ Specialist applications
🧾 ORDERING NOTE
This product is configurable. The options above represent the most common configurations across industrial and commercial applications.
For applications involving enclosed or inerted spaces, a 5-gas configuration including CO₂ may be recommended.
🔢 PART NUMBER STRUCTURE
Honeywell uses a configurable model code, for example:
CPD-W6X1H1M1-Y-00
This represents:
- Sensor configuration
- Flammable gas detection type (IR or catalytic)
- Certification (ATEX / IECEx / UKCA)
- Physical options
👉 Final part numbers are generated based on configuration.
📊 KEY FEATURES
- Available in 4-gas and 5-gas models
- Optional CO₂ monitoring (BW Flex 5)
- Wide range of interchangeable sensors
- Infrared (IR) LEL sensor option
- ATEX / IECEx / UKCA approved
- Large, high-visibility display
- Durable design for demanding environments
- Suitable for confined space entry compliance
📦 WHAT’S INCLUDED
Typical package:
- BW Flex 4 or BW Flex 5 detector (configured)
- Charging solution
- Calibration certificate
- User documentation
