SynchroMate TS-101, Carburetor / Fuel injection throttle body Synchronizer with RPM. Perfectly synchronize two carburetor or injection throttle valves with fixed resolution accuracy of 0.5cmHg as recommended by motorcycle and marine Oes. Built in tachometer displays engine speed (500 - 2000 RPM), for accurate synchronizing & idle adjustment. Powered from external 12V supply or vehicle/craft's 12V battery. Industrial / medical grade MOTOROLA pressure transducer. STYLE / INCLUDED : ABS case with fuel & oil resistant rubber hoses, rubber holster, 2 x M5 & 2 x M6 manifold adapters, TConnector and nylon carry case.