Flue gas monitoring system's sampling probe device

The utility model discloses a flue gas monitoring system's sampling probe device, wherein, this flue gas monitoring system's sampling probe device includes two at least sampling probe, sampling probe is equipped with sampling probe rod, filter, heater and block terminal, the one end of sampling probe rod is fixed in via the flange sleeve sampling probe's casing, and with in the casing the filter intercommunication, the filter is equipped with sample adaptation mouth, sampling probe rod and filter peripheral hardware having heaters, the block terminal with the heater electricity is connected, this flue gas monitoring system's sampling probe device is at least including two kinds of length the sampling probe of sampling probe rod. Through setting up a plurality of sampling probe that have different sampling probe rod length, improved flue gas parameter monitoring accuracy and validity in the flue, guaranteed that the flue gas is handled and discharge system's normal operating.