Application dedicated to users of Opel / Vauxhall Insignia A and B or Astra J and K. It allows you to monitor parameters related to the DPF particulate filter with ELM327, iCar, vLinker BT or WiFi. The parameters can be read in the 2.0CDTI factorials with the following markings: A20DT A20DTC A20DTE A20DTJ A20DTH A20DTL A20DTR B16DTH B20DTH NOTE: Some dongles not support the diagnostic protocol required to read data from Engine Control Unit. This application was tested on the following dongles: Vgate vLinker MC Vgate iCar2 Vgate iCar3 OPL Monitor Term of use can be found at https://www.oplmonitor.eu/en/ios-tos.html