FLEX %LEL(IR) O2 H2S CO, Yellow | BW

The Honeywell BW™ Flex4 is a rugged, portable, wearable 4-gas detector designed to keep workers safe in hazardous environments. This model — with infrared (IR) LEL, oxygen (O?), hydrogen sulfide (H?S), and carbon monoxide (CO) sensors — is especially suited for industrial applications such as oil & gas, mining, steel, wastewater, and confined space work.

Key Features & Benefits

Long Battery Life

• Equipped with a low-power IR LEL sensor, the Flex4 offers up to 40 days of use (based on typical 8-hour shifts) on a full charge
• Reduces downtime and avoids the need for daily recharging

Accurate Combustible Gas Detection

• Uses a non-dispersive infrared (NDIR) LEL sensor, which is immune to silicone poisoning — a common issue in environments with siloxanes or contaminated air
• Measures combustible gas up to 100% LEL

Intelligent / Predictive Maintenance

• Features i-Series (intelligent) sensors that provide real-time alerts for calibration needs, maintenance, and end-of-life — helping prevent unexpected failures.
• Uses IntelliFlash™: a visual status light (green, amber, red) for quick on-field compliance and maintenance status checking.

Connectivity & Reporting

• Bluetooth Low Energy (BLE) allows pairing with a smartphone via Honeywell’s Safety Suite Device Configurator app for configuration, data download, incident reporting, and analysis. 
• Compatible with IntelliDoX docking system for instrument management, calibration, and bump testing.

User Interface & Operation

• Large, high-resolution monochrome display (160×80 px) to show real-time gas readings clearly.
• Simple single-button operation for power and menu control — intuitive to use in high-risk environments.
• Supports multiple operation modes: e.g., Overview mode (all readings), Focus mode (one reading at a time), Safe mode (go/no-go).

Alarm System

• Alarms: Visual, Vibrating, Audible (95 dB)
• Alarm conditions: Low/high gas, TWA (time-weighted average), STEL (short-term exposure limit), negative drift, over-limit, multi-alarm.

Rugged & Wearable Design

• Compact and lightweight.
• Ingress Protection: IP66 / IP68 — can survive being submerged (e.g., 45 minutes at 1.2 m)
• Operating temperature: –40 °C to +60 °C for the IR LEL version.
• Weight: ~186 g with IR LEL sensor + alligator clip.

Sensor Performance

• CO sensor: Range 0–2000 ppm, resolution 1 ppm.
• H?S sensor: Range 0–200 ppm, resolution 1 ppm (configurable to 0.1 ppm).
• O?: 0–30% vol, resolution 0.1%.
• IR LEL: 0–100% LEL (hydrocarbons).
• Self-test: On activation and periodic diagnostics (every 10 min analog, every second digital).

Data Logging

• Logs up to 45 days of data (15-second intervals, assuming 8-hr work days).
• Enables detailed incident reporting, historical exposure analysis, and regulatory compliance.

Certifications & Safety Approvals

• Certified for use in hazardous areas: ATEX, IECEx, etc.
• Three-year warranty on the unit and sensors.

Use-Case Scenarios

This model (CPD-W5X1H1M1Y-00) is particularly valuable for:

• Workers in confined spaces (tanks, sewers): because it monitors O?, H?S, CO, and combustible gas.
• Oil & gas operations, where flammable gases and toxic gases often coexist.
• Mining or steel plants, where there may be risk from combustible gases and oxygen depletion / enrichment.
• Wastewater treatment facilities, where H?S and CO can be common hazards.
• Teams using connected-worker / digital safety programs, thanks to BLE connectivity + Safety Suite integration.

Advantages Over Traditional Detectors

• IR LEL vs Catalytic: The IR sensor is more robust and doesn’t degrade due to silicone poisoning, which makes it more reliable over time, especially in contaminated environments.
• Smart Sensors: The i-Series sensors provide predictive diagnostics, which reduce the risk of unexpected sensor or device failure.
• Efficient Workflows: With Bluetooth and app connectivity, inspection, calibration, and reporting are simplified — saving time and improving record accuracy.
• Durability: High IP rating + wide operating temperature range = designed for tough, real-world industrial conditions.