BW Flex 5

FLEX 5

The Flex 5 is Honeywell’s next-generation modular multi-gas monitor, combining swappable sensor cartridges with the reliability of a single, adaptable platform. Available in diffusion or pumped configurations, it supports up to six gases from more than 20 sensor options, including an optional PID sensor for VOC detection that standard sensors can’t pick up. Built-in Bluetooth and NFC connectivity pair with Honeywell Safety Suite 2.0 for real-time fleet visibility, automated bump testing, and streamlined compliance reporting, giving teams faster, more confident decisions in the field.

Category: RAE Systems by Honeywell, Specialty Gas

Tags: BW Flex, Diffusion, Honeywell, Modular, Multi-Gas, PID, Pumped, Rechargeable

  • Modular platform: configure 4, 5, or 6 gas sensors from one device
  • Swappable cartridges switch between diffusion (wearable) and pumped (confined-space) sampling
  • Optional PID sensor detects VOCs that standard sensors can't see
  • 20+ field-interchangeable sensor options, including LEL, PID, and toxic/exotic gases
  • NFC-enabled actionTAGS automate user ID, bump testing, calibration, and accessory checks
  • Nine alarm types: instantaneous, TWA, STEL, negative drift, over-limit, battery, and system integrity
  • Visual, vibrating, and 95 dB audible alarms
  • Dust-tight and waterproof: IP66/IP68 (diffusion), IP65 (pumped)
  • Rugged design rated for Zone 0, 1, 2 hazardous areas (ATEX, IECEx, UL, CSA)
  • Long battery run-time, up to 25 days on a single charge (diffusion, extended battery)
  • USB-C charging, Bluetooth 5.x, and NFC connectivity
  • Field-replaceable sensor cartridges reduce service downtime and spares inventory
  • Works with Honeywell Safety Suite 2.0 for fleet management, or PC Lite for local setup

  • Size:
    • 4-way diffusion: 136.5 x 72.2 x 32.8 mm (5.4 x 2.8 x 1.3 in), standard battery
    • 6-way diffusion: 158 x 72.2 x 32.8 mm (6.2 x 2.8 x 1.3 in), standard battery
    • 6-way pumped: 163 x 72.2 x 54.3 mm (6.4 x 2.8 x 2.2 in), standard battery
  • Weight:
    • 4-way diffusion: 273g standard battery, 338g extended battery
    • 6-way diffusion: 299g standard battery, 364g extended battery
    • 6-way pumped: 363g standard battery, 428g extended battery
  • Operating Temperature: -20°C to 60°C (-4°F to 140°F), certified; actual range depends on which sensors are fitted
  • Humidity: 0% to 99% relative humidity, non-condensing (general guidance, sensor-dependent)
  • Battery Options:
    • Rechargeable Li-ion, standard capacity
    • Rechargeable Li-ion, extended capacity
    • Charges via USB-C (5V, 1 to 2A)
  • Operating Hours (given in days here, not hours, since diffusion units run much longer than pumped):
    • 4-way diffusion: up to 12 days standard battery, up to 25 days extended battery
    • 6-way diffusion: up to 12 days standard battery, up to 25 days extended battery
    • 6-way pumped: up to 1 day standard battery, up to 2 days extended battery
    • Minimum runtime after 2 years, any configuration: 12 hours
  • Alarms:
    • Audible: 95dB at 30cm
    • Vibration
    • Visible (flashing alarm LEDs)
    • Instantaneous, TWA, STEL, negative drift, over-limit, low battery, and system integrity alerts
    • Data shareable with Safety Suite 2.0 for fleet-level visibility
  • IP Rating:
    • Diffusion models: IP66 and IP68
    • Pumped models: IP65
  • Datalogging:
    • Event log covering all system and sensor critical events
    • Data log at a configurable interval, 15 to 120 seconds
    • Configuration log with full change history
    • Calibration history, last 10 calibrations
  • Sampling Pump: Built-in pump on the 6-way pumped configuration only

Detailed measuring ranges and resolution for each Flex 5 sensor option are available on request. Contact our team for a full specification sheet tailored to your configuration.

Available gases: Flammable (%LEL), Hydrocarbon (%LEL), Carbon Dioxide, VOCs (PID), Oxygen, Ammonia, Carbon Monoxide, Hydrogen Sulphide, Chlorine, Chlorine Dioxide, Ethylene Oxide, Hydrogen Chloride, Hydrogen, Hydrogen Cyanide, Hydrogen Fluoride, Nitric Oxide, Nitrogen Dioxide, Ozone, Phosgene, Phosphine, Sulphur Dioxide

Request More Info