MULTIGAS DETECTION: Have your Altair 4X Multigas Detector ready and charged at any moment with the vehicle cradle charger assembly. Altair 4X is equipped to measure up to four gases in one device, designed for virtually no cross-channel interference FULL-TIME TRACEABILITY: Records 500+ alarm events and 50+ hours of data (including bump and calibration records), rechargeable Li-polymer battery with 24-hour run-time SAFETY & COMPLIANCE: LED indicates bump pass/fail with large on-screen cues, equipped with MotionAlert (man-down alarm) Feature, InstantAlert (manual alarm) Feature, and end-of-sensor-life warning RUGGED DURABILITY: Altair 4X Multigas Detectors have tough over-molded rubber armor, survives multiple 25-ft drops onto concrete, MIL-STD-810G drop protection, certified IP68 rating, dust and waterproof COMPREHENSIVE EQUIPMENT: Includes detector, performance guarantee, 4-year warranty, Bluetooth connectivity capabilities, and MSA ALTAIR Connect App access