All ALTAIR 2X Gas Detectors Incorporate proven XCell® sensor technology Enhance worker safety, compliance and traceability Minimize cost of ownership Demonstrate rugged durability   Product Options ALTAIR 2XP Gas Detector with XCell Pulse Technology: H2S  - Features the first stand-alone bump test, which eliminates the need for bottled gas! Bump test anytime, anywhere Based on proven science and patented sensor capabilities ALTAIR 2XP Gas Detector with XCell Pulse Technology: H2S ALTAIR 2X Gas Detectors: CO, CO-HC (High Concentration), CO-H2 (Hydrogen Resistant), H2S-LC, SO2, NO2, NH3 and Cl2 ALTAIR 2XT Two-Tox Gas Detector: CO/H2S, CO-H2/H2S, CO/H2S-LC, CO/NO2 and SO2/H2S-LC Low cost of ownership Fastest sensor response times, lowest calibration gas flow rate on the market > 4-year expected sensor life 3-year warranty on instrument & most sensors (2 years on Cl2, NH3) Stand-alone bump tests reduce maintenance, increase productivity (ALTAIR 2XP only) 1 device can monitor 2 gases (ALTAIR 2XT only) Increased safety awareness & compliance Stand-alone bump test anytime, anywhere without specific calibration gas (ALTAIR 2XP only) Bump pass: green LED flash every 15s, large on-screen checkmark Bump fail or expiration: red LED flash every 15s, no checkmark End-of-sensor-life warning and alarm Full-time traceability Records 75 alarm events 150+ hours of periodic data (ALTAIR 2X and 2XP) 100+ hours of periodic data (ALTAIR 2XT) Compatible with MSA GALAXY® GX2 Automated Test System and MSA Grid Rugged durability Tough over-molded rubber armor Survives multiple 25-ft drops onto concrete Agency-certified dust- and water-tight IP67 construction Intrinsically-safe design