Altair Pro Single Gas Detectors

The Altair Pro Single Gas Detector for the detection of Hydrogen Cyanide, Chlorine Dioxide, Phophine and Oxygen.

Based on the industry-standard ALTAIR Single-Gas Detector—but with added features and functionality

ALTAIR Pro toxic gas and oxygen detectors combine reliable detection and LED/audible/flashing/vibrating alarms with clear, backlit LCD displays.

Electrochemical sensors measure concentrations of toxic gas (chlorine dioxide, hydrogen cyanide and phosphine) or percent oxygen. Purpose-built for superior dust and water protection, excellent impact resistance and excellent RFI performance.


  • Gas concentration (chlorine dioxide, hydrogen cyanide and phosphine) or percent oxygen displayed on a large, clear, backlit LCD
  • Automatically records the last 50 alarm/test events while simultaneously recording peak gas readings or low O2 readings every three minutes in a periodic data log
  • User can read data or change alarm set points by connecting unit to MSA Link via built-in IR communication port
  • Adjustable alarm set points
  • No-miss quad alarm system includes bright flashing LEDs, piercing audible alarm, LCD notification, and an internal vibrating alarm
  • Rubberised armour housing and one-button operation for maximum durability and simplicity
  • Easy alarm check, bump check, fresh air zero, and calibration
  • Easily replaceable batteries and sensors

Single Gas Detector O2


Ordering Information

10074137  Altair Pro Single Gas Detector for Oxygen
Alarms Preset at 19.5 / 23.0 % Vol

Altair Pro HCN Detector


Ordering Information

10076729  Altair Pro Single Gas Detector for Hydrogen Cyanide
Alarms Preset at 4.5 / 10 ppm

Altair Pro CLO2 Detector

Ordering Information

10076717  Altair Pro Single Gas Detector for CLO2
Alarms Preset at 0.1 / 0.3 ppm

Altair Pro PH3 Detector

Altair-Pro-Single Gas Monitor PH3

Ordering Information

10076735  Altair Pro Single Gas Detector for Phosphine
Alarms Preset at 0.3 / 1.0 ppm

Packed with features

  • Built-in gas delivery adapter; no accessories are needed for gas response tests
  • Distinctive triple alarm system leaves no doubt for users in alarm situations
  • Piercing audio alarm averages 95 dB @ 1 foot and is distinctive from other workplace sounds
  • Extended frequency range covers a wide sound spectrum
  • Visual alarm features dual LED displays located on the unit’s top, visible from all angles
  • Internal vibrating alarm is standard, emitting a pulse that directly calls additional attention when in alarm mode

Altair Pro Single Gas Detector – Extremely Easy to Use

The ALTAIR Pro Single-Gas Detector combines user flexibility and functional simplicity

  • True single-button operation provides users with a clear path to any function
  • With a single button, users can:
    • Turn the unit on
    • Activate the backlight
    • Activate the infrared link for computer communication
    • Display software version and alarm settings
    • Perform fresh air setup (FAS)
    • Initiate a bump test
    • Change calibration gas concentration
    • Initiate calibration
    • Reset peak reading display
    • Manually change LOW, HIGH, TWA, STEL alarm set points(in protected SETUP mode only)
    • Turn the unit off

Easily Replaceable, Commercially Available Battery

The detector runs on a single, simple-to-install CR2 camera battery.

Installed battery life is approximately 9,000 hrs (> 1 year)

  • No long wake-up period; each time units are activated,small amounts of power are supplied to sensors even when units are powered off


Download the Brochure Direct from MSA’s Website Click Here

Built-In IR Communication (Event & Data Logging)

Data logging is standard; unit automatically records 50 latest events in the session log, while simultaneously recording peak gas readings or low O2 readings every three minutes in a periodic data log.

Combined, these tools provide a great way to assess alarm conditions, confirm bump tests or calibration and verify employee gas concentration exposures.

To access data, simply link the unit to your MSA infrared adapter using standard built-in IR communication.

MSA Link Software lets you view various logs, adjust alarm set points, assign specific names to units, and disable or activate particular features and options.

MSA Altair Pro Brochure