TecMate VacuuMate Allweather Carburetor Synchronizer With Battery The VacuumMate Allweather is a standout tool for the precise and rapid synchronization of up to four carburetors or fuel injection throttle valves, suited for both 2 and 4-stroke engines. It features four LED bar graphs, each with 40 bright LEDs, ensuring sunlight-visible, clear readings of individual manifold pressures. Designed for versatility, it is ideal for use in workshops, onboard marine environments, and external settings, setting a high standard in the industry for performance and reliability. Features: Precise synchronization of up to 4 carburetors/fuel injection throttle valves Fixed resolution accuracy of 0.5 cmHg Built-in tachometer displays engine speed in RPM via pressure pulses Dynamic mode troubleshoots poor engine synchronizing by displaying valve sealing differences 4 x industrial/medical-grade Motorola pressure transducers 4 LED bars (40 LEDs each) for clear manifold pressure readings in sunlight Suitable for 2 and 4-stroke engines Adjustable ranges for Sync (5-25, 20-40, 35-55 cmHg) and RPM (500-2500 rpm) Rechargeable 7.2V NiMH battery (6-hour autonomy) and 12V DC power/recharge capability Includes fuel & oil resistant rubber hoses, DC power lead with battery clips, 4 x M5 and 4 x M6 flexi-rigid adapters, and a fuel switch T-piece Expandable to 6 cylinders with an optional adapter