MSA 4XR Multigas Detector; LEL, O2, H2S, & CO)
Rugged
Survives 25 drops from 4 feet (1.2 meters) (MIL-STD-810G 516.6 Transit Drop 3rd Party Certified)
Can survive an incidental 25-foot (7.5-m) drop onto concrete
Operating temperature range: -40°F to +140°F (-40°C to +60°C)
Reliable
Sense gas 2 times faster than the industry average with our XCell sensors
4-year instrument & sensor warranty
Confirm compliance quickly with the Bump LED & on-screen checkmark
Bump and calibrate with 1/2 the test gas and in 1/2 the time vs. industry average
Bump and calibrate at a specified "Time of Day" with your MSA GALAXY® GX2 Automated Test System
MotionAlert option tells others that user has become immobile
User-activated InstantAlert notifies others of a potentially dangerous situation
Charcoal Case: 10178557 
Glow-in-the-dark Case: 10178558