HEATKEYS

Leading Manufacturer of Differential Pressure Gauges/switches, Pulsation Snubbers, Pressure Limiting Valves, Averaging Pitot Tubes, Portable Flow Measurement and Backflow Prevention Device Test Kits

Full line catalog of Industrial controls including pressure gages, manometers, pressure-switches, transmitters, flowmeters, flow-switches, pitot tubes, anemometers, air velocity instruments, Level-Switches, temperature-controllers, thermocouples, RTD

Orange Research is a leader in differential pressure measurement and manufactures rugged, affordable gauges, switches and transmitters for industrial and process applications. The company also sells liquid & gas flowmeters.

Sensocon products include digital differential pressure gauges and controls, differential pressure transmitters, airflow probes, airflow stations, air velocity transmitters...