TWINMAX - Electronic carburettor balancer

Other balancers use either dial gauges or tubes containing mercury or spring loaded weights with one gauge per cylinder and any adjustments to the carburettors are made according to the readings on each of these gauges. This means that not only is there the potential for errors to due to the moving parts of each gauge, it is very difficult to ensure that each gauge gives exactly the same reading on a given amount of vacuum, due to variances in manufacturing tolerances, friction differences, volumes of mercury or tension of springs.
The TWINMAX is different. The TWINMAX works by comparing the vacuum present on either side of a single pressure sensor and shows this difference as a meter reading. The carburettor being calibrated at that time is then adjusted until there is no deviation on the meter! No potential errors and only one reading to make at any time!