BW Max XT II
Pumped Four Gas Detector
With SmartSample pump technology that detects blockages before they compromise a reading, one button operation, IntelliFlash compliance indication and IntelliDoX compatibility, the BW Max XT II is a practical and affordable confined space entry tool for teams that need a dedicated pumped instrument.
KEY BENEFITS
- Built-in pump samples from up to 23 metres away so workers test the atmosphere before entry, not after
- SmartSample semiconductor pressure sensor detects partial blockages that standard mechanical switches miss, preventing false readings
- One button tamperproof operation, with no menus or settings to navigate
- IntelliFlash green light gives supervisors instant visible compliance confirmation without paperwork
- 375 hours of datalogging at 15-second intervals keeps a full compliance record automatically
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Test Before You Enter. That is What the BW Max XT II is For.
Most diffusion 4-gas monitors protect workers who are already inside the hazard zone. They measure the gas concentration immediately surrounding the person wearing the instrument. The BW Max XT II takes a different approach. Its built-in integrated pump draws a gas sample from up to 23 metres away, allowing workers to test the atmosphere inside a confined space before the first person steps in. That is a meaningful safety difference. It is the difference between knowing the space is safe before entry and discovering it is not once you are already inside.
The BW Max XT II simultaneously monitors the four standard confined space gases: combustible gas in %LEL, oxygen, carbon monoxide and hydrogen sulphide. Combined with remote sampling, this covers the four gases most commonly tested before confined space entry. Your risk assessment may call for others.
SmartSample Pump Technology
Pump blockages are a real problem in confined space sampling. A partially blocked tube can restrict flow without triggering an obvious alarm, giving operators false confidence in readings that are actually compromised by insufficient sample draw. The BW Max XT II addresses this with SmartSample pump technology, which uses a semiconductor pressure sensor instead of a simple mechanical switch. This delivers best-in-class sensitivity to partial blockages, alerting the operator before a compromised sample reaches the sensors and produces a misleading result.
Simple to Operate, Easy to Maintain
Single-button tamperproof operation keeps the BW Max XT II straightforward for any worker to use without extensive training. IntelliFlash provides a continuously flashing green light that confirms the instrument has been bump tested and is monitoring correctly, no screen reading required. On startup, a full function self-test checks sensors, battery, pump and circuit integrity, so workers know the instrument is ready before they approach the confined space.
The IntelliDoX docking station automates bump testing, calibration and data download for operations managing multiple instruments. Datalogging runs for 375 hours at 15 second intervals, and the detector records its 30 most recent gas alarm events, so there’s a full compliance record without manual data entry. Settings are configured with Honeywell Safety Suite Device Configurator.
Benefits
- Built-in pump samples from up to 23 metres away so workers test the atmosphere before entry, not after
- SmartSample semiconductor pressure sensor detects partial blockages that standard mechanical switches miss, preventing false readings
- One button tamperproof operation, with no menus or settings to navigate
- IntelliFlash green light gives supervisors instant visible compliance confirmation without paperwork
- 375 hours of datalogging at 15-second intervals keeps a full compliance record automatically
- Full function self test on start up covers sensors, battery, pump and circuitry before each job
- IntelliDoX compatibility automates bump testing, calibration and data download across the fleet
- Records the 30 most recent gas alarm events for incident review
- Multi-language support across English, French, German, Spanish and Portuguese
- Full 2-year warranty including all sensors
Dimensions
131 x 70 x 52 mm
Weight
328 g
Display
Continuous alphanumeric LCD showing real-time gas concentrations
Keypad
Single button tamperproof operation
Sampling
Integrated diaphragm pump, remote sampling up to 23 m (75 ft)
Response time
T90 4 seconds
Calibration
Automatic zero and span. Honeywell recommends calibration at least every 180 days
Pump technology
SmartSample with semiconductor pressure sensor for best-in-class blockage detection
Battery runtime
13 hours typical, 8 hours at -20°C. Recharges in 6 hours
Operating temperature
-20°C to 50°C
Humidity
10 to 100% RH non-condensing
Self-test
Full function on startup covering sensors, battery, pump and circuit integrity. Continuous monitoring of sensors, battery and circuitry during operation
IntelliFlash
Continuous green flashing light confirming operation and compliance
Datalogging
375 hours at 15 second intervals. Event log of the 30 most recent gas alarms
Docking station
IntelliDoX
Software
Honeywell Safety Suite Device Configurator
Languages
English, French, German, Spanish, Portuguese
IP rating
IP66/67
Certifications
CSA Class I, Division 1, Groups A, B, C and D. IECEx Ex da ia IIC T4 Ga. ATEX II 1 G Ex da ia IIC T4 Ga. RCM
Warranty
Full 2 years including all sensors
Carbon Monoxide
CO
Hydrogen Sulphide
H2S
Combustible Gas
LEL
Oxygen
O2
- Aviation & Transportation
- Chemical Manufacturing
- Confined Space & Compliance
- Energy (Oil & Gas)
- Food & Beverage
- Landfill & Remediation
- Marine & Maritime
- Mining & Minerals
- Power Generation & BESS
- Water & Wastewater
The BW MicroClip XL and X3 are diffusion instruments that detect gases immediately surrounding the worker. The BW Max XT II has a built-in pump that draws samples from up to 23 metres away, allowing pre-entry atmosphere testing before anyone enters a confined space. It is designed for teams who need a dedicated pumped confined space instrument.
SmartSample uses a semiconductor pressure sensor to detect pump blockages with significantly better sensitivity than a standard mechanical switch. A partial blockage that might go undetected with a mechanical sensor will trigger an alert with SmartSample, preventing compromised readings from reaching the display.
Yes, it can be worn during confined space work after pre-entry testing is complete. At 328 grams it is heavier than a dedicated personal diffusion monitor, so for ongoing personal protection during work after entry, a lighter instrument like the BW MicroClip XL is typically the better choice.
13 hours at 0°C and 8 hours at -20°C from a full charge. The battery recharges in approximately 6 hours.
Yes. The BW Max XT II is compatible with the IntelliDoX docking station for automated bump testing, calibration and data download.
The integrated pump draws a gas sample from up to 23 metres (75 feet) away.
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