Teledyne Hastings Instruments is a trusted manufacturer of a wide range of quality Vacuum Instruments and Gas Mass Flow Instruments. The vacuum product line includes the original DV-4 and DV-6 thermocouple gauge tubes, along with other vacuum sensors used in combination with meters and controllers that covers a wide range of vacuum pressure from atmosphere to ultra high vacuum. The gas mass flow line of meters and controllers cover a board range of flow rates from 5 sccm to 15000 slm that includes a variety of flexible options for outputs, calibration and fittings.