Multi Sensor Confined Space Gas Detector The MultiPro offers real time readings for up to 4 gases, true one-button operation (including calibration), and a built in event capable of storing information for 20 events including sensor type, max and average readings, time and duration. It's available with either a Li-Ion or an Alkaline battery pack and offers run times up to 24 hours. For remote use, both manual and motorized sample draw systems are available. The MultiPro is loaded with features that are critical for working safely in confined spaces.