Multiple alarm mode settings: low alarm, high alarm, interval alarm, and weighted average alarm. Mis-operation recognition function: automatic recognition and prevention of the concentration calibration mis-operation, which is possible to avoid the poor performance that may be caused by human factors. Zero-point automatic tracking; long-term use will not be affected by the zero drift. Multi-level calibration for target points, can ensure the linearity and accuracy of the measurements. Chinese or English interfaces can be selected.
Broad operating temperatures: -40~+70℃, and temperature compensation is supported.