The GasAlertMicro 5 portable gas detector simultaneously monitors and displays up to five potential atmospheric hazards including oxygen, combustible gases, PID detectable gases and a range of toxic gases. Compact and lightweight, GasAlertMicro 5 adds multi-gas detection to BW Technologies' water-resistant line of detectors. Audible, visible and vibrator alarms activated in the event of a low, high, twa or stel alarm condition. An opitonal motorized pump is also available.