Industries » Specialty Vehicles and Equipment Specialty Vehicles and Equipment maximatecc offers CAN / SAE J1939 compatible instrument clusters, gauges, displays, and accessories suitable for specialty vehicles: Fire Trucks Ambulance Courtesy Vehicles Industrial Forklifts All Terrain Vehicles (ATV) Recreational Utility Vehicles A : Sensors/Senders B : I/O Controller C : Fuel Sender D : Gauges E : Instrument Cluster