XT-XWHM-Y-3C: exact-model sourcing for a pumped four-gas detector

The core code XT-XWHM-Y identifies a yellow Honeywell BW Max XT II equipped to monitor oxygen (O₂), combustible gas (%LEL), hydrogen sulfide (H₂S) and carbon monoxide (CO). The Max XT II platform adds an integrated motorized pump, enabling operators to draw a remote sample before entering tanks, pits, vessels and other potentially hazardous spaces.

The complete code XT-XWHM-Y-3C appears in procurement and replacement enquiries. However, Honeywell's publicly available standard order guide lists regional suffixes such as -NA, -EU, -BR, -AU, -OE, -OR and -CN and does not define “3C”. For accuracy, we treat -3C as a configuration suffix requiring verification, not as a claim of a specific approval or certificate.

Verified part of the ordering code

Why configuration verification matters

A near-match may look identical while differing in regional power accessories, language, alarm settings, calibration requirements, labeling or project documentation. For a replacement order, the safest approach is to compare the full nameplate and application requirements rather than relying only on a product photograph.

Core BW Max XT II capabilities

• Simultaneous monitoring of H₂S, CO, O₂ and combustible gases.

• Integrated motorized pump for remote sampling and pre-entry checks.

• Simple one-button field operation with audible, visual and vibration alarms.

• Compatibility with MicroDock II automated testing and calibration workflows.

• Operating temperature of -20 to +50 °C and a compact 13.1 × 7.0 × 5.2 cm enclosure.

Replacement and project RFQ checklist

1. Send a clear photo of the detector front and full rear nameplate.

2. Confirm the required gases and measurement ranges.

3. State the destination country and site certification requirements.

4. List required quantity, target delivery date and any third-party documentation.

5. Specify sampling hose, probe, filters, charger, calibration gas or docking accessories.

Get a verified quotation

Automation Instruments can quote the requested XT-XWHM-Y-3C and help compare it with currently documented configurations. Availability, final configuration, approvals and lead time are confirmed in the formal quotation. Sending the nameplate at the start prevents avoidable delays and improves replacement accuracy.