With the new "Auto Device Check" menu option in smart AutoCal, regular device maintenance is easier and safer than ever before. This intelligent function takes the decision out of your hands as to exactly what needs to be done and controls the test sequence fully automatically. Based on the calibration settings from OLLI and the minimum validity period from smart AutoCal, the system determines entirely independently which test gas must be used for calibration (LEL, PPM, Vol%). As a result, without any manual effort, your device will have a valid calibration in all three areas for the specified period. This saves you valuable time in your day-to-day work and means you can always rely on your measurement equipment being in ready-to-use condition.