Applications : checking pressures in gas networks within measurement ranges which vary according to the type of manometric liquid used : VF 1 or MERCURY.Measurement RangeVF1 Liquid d=1 in mmCE : 250-0-250 500-0-500Hg Liquid d=13,545 in mbar : 340-0-340 470-0-470 670-0-670″U”- shaped column for measuring consecutively positive and negative pressures.Measurement by addition of values read on each column.For fixed or portable use.Zero adjustment by moving the slide strip.Possibility of resisting static pressures over 10 bars.Altuglas column sunk into the solid block.Comes with bottle of liquid, 2 screws and 2 rawlplugs.