Dust monitor 6 by HAM6/7 has been swapped for a spare after it failed its zero count test during the quarterly check and it has also been having connections issues since the LVEA dust monitor code was restarted last month. The new DM passed both the zero count and flow rate test, I also brought out a newer model handheld dust monitor and tested it along side it and it read very similar values of counts. The new dust monitor immediately connected and we were able to read its channel values from the medm (PEM -> LVEA -> 6).