MSA ALTAIR Single-Gas Hydrogen Sulfide Monitor features patented MSA-built button sensors and electrochemical sensors coupled with LED/audible/vibrating alarms. Monitor featuring stainless steel and solid electrolyte construction nearly prevents sensor leakage. Monitor has rubberized armor housing with eXCellnt dust/water protection which is highly resistant to RFI and has one-button operation that offers heightened safety along with enhanced durability. It has no-miss triple alarm system that contains bright flashing LEDs, piercing audible alarm and an internal vibrating alarm. Monitor automatically records the last 25 alarm/test events and can transmit data by connecting to MSA link via built-in IR communication port. Monitor operates at -20 to 50 deg C and 10 - 95% RH, non condensing humidity. Monitor with 25 shared events transmits data via MSA infrared adapter on a PC using MSA five star link version 4.3 software while transmission time is maximum 60 sec. Monitor with IP67 ingress protection has 95 dB audible alarm which is ideal for toxic and oxygen detection. Monitor with low 10 pmm and high 15 pmm alarm set points is a bright choice for market-leading, cost-effective gas monitors. Monitor with high lifespan patented sensors operates for over two years and delivers high performance.