We are offering bench pressure calibrator. Long life, minimum maintanence fast pressure generation minimum force required for pressure generation available in many ranges upto 1000 bar vaccum testers also available portable version of ah1-150 and ah1-400 for site calibration available with digitalanalog master gauges upto 0.05% accuracy high volume capacity for testing 6"10" gauges best for lab use most parts made from stainless steel