Pacific Test and Measure is proud to be the West Coast rep for the Teledyne Hastings Instruments. Teledyne Hastings is a trusted manufacturer of a wide range of quality vacuum instruments and gas mass flow instruments. Our 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. These devices cover a wide range of vacuum pressure from atmosphere to ultra high ??vacuum. The G?as Mass Flow line of meters and controllers cover a broad range of flow rates from 5 sccm to 15,000 slm that includes a variety of flexible options for outputs, calibration, and fittings.