The rugged Altair® 5X portable, datalogging multi-gas detector measures gases simultaneously and has a PID sensor to detect VOCs. It has audible (95+dB), visual, and vibrating alarms and a MotionAlert™ 30-sec. "man down" sensor. Large buttons allow easy operation with gloved hands. The device employs XCell® technology for faster performance and more than 4 yr. typical sensor life. An integral pump provides consistent flow.