Pressure gauges - Particular execution - U pressure gauge - METAL base
It's the first of all pressure gauge, the most rielable. Use the weight of water to show pressure or depression. It doesn't need to maintenance and is adjustable to compensate for the liquid and / or atmospheric pressure.
100% working pressure
Normalized ranges: ± 200; ± 300; ± 400; ± 500; ± 600; ± 800; ± 1000 mmH2O
Wooden base with plexiglass tube