The device
The diagnostic connection links the compatible truck to the service. The correct connector and supported vehicle configuration must be confirmed before ordering.

Remote testing / E-ZCARB
Remote Clean Truck Check uses a compatible diagnostic device and a testing service. Check the vehicle first, then choose the setup and service that meet your needs.
The diagnostic connection links the compatible truck to the service. The correct connector and supported vehicle configuration must be confirmed before ordering.
Review how activation, test scheduling, result reporting and support work for your plan. These are service commitments, not simply features of the hardware.
Keep the vehicle maintained and follow setup instructions. Check your official registration and compliance obligations separately from the testing service.