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MSA Safety


MSA Altair Pro Single Gas Detector - Oxygen


The ALTAIR® Pro Single-Gas Detector's unique design combined with its highly competitive price makes it the clear choice when selecting a single-gas detection instrument. It is accurate, reliable, durable, easy to use, easy to maintain, and packed with features. The ALTAIR® Pro Single-Gas Detector is designed and manufactured by MSA, the most trusted name in the safety products industry. The ALTAIR® Pro Single-Gas Detector provides worry-free performance and stands up to the roughest handling in even the toughest industrial environments. Sensors and battery are easily replaced to keep the unit performing for years. The ALTAIR® Pro Single-Gas Detector is designed and built with MSA's superior quality and is part of MSA's ALTAIR® Detector family of products.

It is important when choosing a gas detector, to look at the circumstances it will be used in, as this is a single gas detector, it will NOT sense other potential hazards in your environment, just Oxygen levels - This detector is purely intended for the use and detection of Oxygen (O2). It measures a LOW alarm at 19.5% and a high alarm at 23%.

This is the detector only, no calibration kit is included with this unit. The unit ships calibrated.


  • Tough rubberised housing
  • One-button operation
  • Accurately measures gas concentration or percent oxygen
  • Displays information on a large, clear, backlit LCD.
  • Superior dust and water protection (rated IP67 except O2-R)
  • Event-logging and data-logging
  • Excellent impact resistance
  • Great RFI performance
  • Adjustable alarm set points are offered for LOW and HIGH.
  • Alarms are indicated by flashing LEDs, audible alarm, and internal vibrating alarm
  • Replaceable battery and sensor

Colour:  Black

Weight:  115 grams

Model Number:   10074137

Please note, this item is not carried in stock as the units have a fixed shelf life once calibrated, so we order this item when you order it, to give you the MAXIMUM shelf life. Please allow approximately 7 days for calibration and delivery.

Specifications Table

Weight 115 grams
Dimensions 8.7 cm  x 5.1 cm x 2.5cm
Operating T Range -20°C to +50°C
Humidity 10-95% RH non-condensing
Alarms Average > 95 dB @ 30 cm, bright LEDs, vibrating alarm standard
Warranty See instruction manual for full warranty information
Instrument Life Indefinite with sensor and battery replacement as needed
Battery CR2 lithium camera battery (9000 hour installed life - typical)
Case Polycarbonate with rubberised shell
Display Large LCD with backlight
Ingress Protection IP67
Data Logging 50 latest events in session log Peak value every 3 minutes in periodic log
Certifications: Au Ex ia IIC T4 (Ta = 50 °C)

Shipping For This Item:

This item qualifies for FREE SHIPPING (in orders over $199) or low-cost $14.90 shipping (orders under $199).

About Shipping:

  • FREE SHIPPING on most orders, when spending over $199! (if all non-bulky items)
  • Orders under $199 are $14.90 shipping (if all non-bulky items)
  • Even if it's not free-shipping, you only pay one shipping-fee per order, so fill up that shopping cart!

REMOTE AREAS: (e.g. offshore islands, mining sites, far north WA/QLD)
If you order to an extremely remote area, we may need to contact you to manually confirm or adjust the shipping amount; you'll have the choice to proceed or cancel-refund.

View our shipping policies in detail here