Carrier Transicold’s FuelCheck ultrasonic monitoring option for Vector and X2 Series trailer refrigeration units is designed to help reduce operating costs and protect the integrity of the cold chain by alerting drivers when low-fuel situations could lead to a system shutdown. It also enables fuel consumption tracking, helping to improve fuel management across entire fleets. FuelCheck software tracks the fuel level via the DataLink data recorder of the refrigeration unit’s Advance microprocessor control.