Altop industries offers a wide range of pressure calibration products. These are developed keeping in mind modern industry requirements. As part of these products, the company offers dial type test/master gauges apcal3000/4000. These are made up of beryllium copper bourdon tube. These are manufactured using precision movement and knife edge pointer with antiparallax. The range gauges i.E. Apcal 4000 series is ±0.5% fsd and for master gauges i.E. Apcal 4000 series is ±0.25% fsd.
