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MSA ALTAIR 4 calibration cap kit with cap connector and tubing

MSA

MSA 10089321 Calibration Cap Kit traffic safety equipment

SKU CH-SMD5-PC81E

Calibration cap kit for ALTAIR 4 gas detectors, includes cap, connector and tubing for carbon monoxide, hydrogen sulfide and oxygen sensors

  • Ensures accurate detector readings with a dedicated calibration cap assembly
  • Compatible with ALTAIR 4 series multi-gas monitors for CO, H₂S and O₂
  • Fits multiple MSA part numbers including 10107602, 10107603 and 10110443 through 10110489
  • Complete kit includes cap, connector and tubing for immediate use
  • New MSA Safety component supplied in original manufacturer packaging

MSA ALTAIR 4 Calibration Cap Kit

The MSA 10089321 Calibration Cap Kit is a calibration adapter assembly designed for the ALTAIR 4 series of gas detectors. It supports calibration for carbon monoxide, hydrogen sulfide, and oxygen sensors. The kit includes the cap, connector, and tubing required to perform a calibration check. It is intended for safety professionals maintaining compatible MSA gas detection instruments.

Replaces worn or damaged calibration caps

This kit replaces the calibration cap assembly on ALTAIR 4 detectors when the original components are cracked, blocked, or no longer seal correctly. A fresh cap and tubing ensure accurate gas flow during calibration, which is critical for reliable sensor readings. The jump is worth it when bump tests fail or when the existing cap shows visible wear that could compromise the calibration integrity.

Check compatibility with listed manufacturer numbers

Before ordering, verify that your ALTAIR 4 detector carries one of the following manufacturer numbers: 10107602, 10107603, 10110443, 10110444, 10110445, 10110446, 10110488, or 10110489. This kit is not compatible with other MSA detector series or non-ALTAIR 4 models. Buyers needing calibration adapters for different gas types or detector families should look for the specific kit matched to their instrument.

How it compares

Measured against everything we stock in Traffic Cones, Signs & Safety Gear, at today’s prices. Recalculated every night.

Price $40.99
Cheaper than about 60% of the 1,503 comparable items (median $61.99).

Specifications

Product
Brand nameMSA

Questions about this item

Which MSA ALTAIR 4 detector models does the 10089321 calibration cap kit connect to?

The kit fits MSA ALTAIR 4 detectors with manufacturer numbers 10107602, 10107603, 10110443, 10110444, 10110445, 10110446, 10110488 and 10110489.

What step do users often miss when fitting the calibration cap onto an ALTAIR 4 detector?

Push the cap fully onto the sensor inlet until the connector clicks, then attach the tubing to the regulator before starting the calibration cycle.

Which parts of the 10089321 kit need replacement after repeated calibrations?

The tubing and connector should be inspected regularly and replaced if they show cracks, stiffness or contamination that could affect gas flow.

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