With this quality air pressure tester you can check the pre-pressure of the expansion vessel. The measuring range is between 0 and 6 bar.
The pre-pressure is usually 1.5 bar for vessels in the heating area and between 2.5 and 3 bar for solar systems. An exact setting based on the system design is required in all cases. This device can also be used to check the pressure of car, motorcycle or bicycle tires.
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