Synchronizer - VacuumMate™ Allweather
Industry standard for fast and accurate synchronizing for up to four carburetor/fuel injection throttle valves, Includes a rechargeable 7.2 V NiMH battery (can also be powered and recharged by the internal battery), Includes four M5 and four M6 unique flexi-rigid manifold adapters, Built-in tachometer displays engine idle speed up to 2000 rpm, Four LED bars display manifold pressure, even in sunlight, Dynamic mode to troubleshoot poor engine synchronizing, Can be used with two- or four-stroke engines.