Profile: DH Instruments, Inc. provides high performance pressure and gas flow standards including calibration process software. We specialize in pressure & flow calibration standards that include PG7000 automated pressure balances, FPG very low pressure standard, a full range of digital pressure controllers and pressure monitors & molbloc/molbox gas flow calibration systems. We also offer a complete calibration services for all types of pressure and flow measuring and controlling instruments. We also offer piston gauges and automated mass handlers.