Gas Detector Sensor, Gas Detected Oxygen, Measurement Range 0 to 30 Percent, Compatible Detector Model/Series GasAlert Extreme, GasAlert Max XT II, GasAlert Micro5, GasAlert Microclip XT/XL, GasAlert Quattro, Sensor Type O2, Compatible Detector Manufacturer Part Number GasAlert Extreme, GasAlertMicroClip XT/ XL, GasAlertQuattro, GasAlertMaxXT II, GasAlertMicro 5 Series, Series GasAlert Extreme, GasAlert Max XT II, GasAlert Micro5, GasAlert Microclip XT/XL, GasAlert Quattro, Sub-Brand BW