Liquid manometers with U-shaped measuring tube made of mineral glass or acrylic glass, mounted on a base plate, with adjustable scale, zero point at center, with tubing connectors of 10 mm dia., filled with water or D instrument liquid.
Base made of torsion-resistant metal section with 2 fastening holes, acrylic glass tube and screwed-on tubing connectors. Rugged construction.
Special scales in Pa or mbar for mercury filling possible.
Density 1,0 g/ml, dyed blue, non-freezing down to -50°C, neutral to acrylic glass, in bottles.