https://us.msasafety.com/Portable-Gas-Detection/Single-or-Two-Gas/ALTAIR%C2%AE-Single-Gas-Detector/p/000080000200001010

Available in 14 different configurations

Designed for superior lifespan—patented sensors operate for over two years—and high performance, the ALTAIR Single-Gas Detector is the smart choice for market-leading, cost-effective gas monitors. Features sensor options for carbon monoxide, hydrogen sulfide, and oxygen coupled with LED/audible/vibrating alarms. Superior dust/water protection, high RFI resistance, and one-button operation provide heightened safety, plus increased durability and ease-of-use.

• Sensor options for CO, H2S, and O2
• Patented electrochemical sensors and MSA-built button sensors
• Stainless steel and solid electrolyte construction virtually eliminate sensor leakage
• Automatically records the last 25 alarm/test events and can communicate data by connecting to MSA Link via built-in IR communication port
• No-miss triple alarm system includes bright flashing LEDs, piercing audible alarm, and an internal vibrating alarm
• Rubberized armor housing and one-button operation for maximum durability and simplicity