With the new ALTAIR 4, MSA has developed one of the most rugged 4 gas detectors available. Extremely easy-to-use it measures O2, H2S, CO and combustible gas simultaneously. MotionAlert is a feature unique in the world of portable industrial gas detection and is available as an option on the ALTAIR 4. When enabled, this man-down alarm with motion detector alerts anyone in the vicinity if the user is in distress with a high visibility LEDs and a piercing audible alarm. The user can also alert anyone nearby with a 3 second button press, activating the InstantAlert alarm. The ALTAIR 4 comes with a high performance triple alarm system, 24 hour bump test checkmark and comprehensive data-logging facility as standard. The rechargeable battery provides 16 hours of continuous operation with a 4 hour charge time.

With reliability a key factor, ALTAIR 4 is features an extremely durable rubberized housing for water and dust ingress protection [IP 67]. A large numeric display allows users to view gas concentration, alarm conditions, battery status, set points and peak reading with accuracy and confidence. An intuitive 3 button operation ensures the ALTAIR 4 is extremely easy to use, even when wearing professional gloves.

The triple alarm system includes a distinctive 95 dB alarm, strong vibrating alarm and super-bright LEDs on the top and bottom to ensure visibility from all angles. A separate LED clearly shows the unit is operating correctly by flashing every 15 seconds.