Noshok NOSHOK was one of the first manufacturers to offer a liquid filled pressure gauge. NOSHOK pressure gauges are used in applications in virtually every industry. NOSHOK offerings include Transmitters, Transducers & Indicators, Pressure Switches, Diaphragm Seals, Bimetal Thermometers, Manifold Valves, Needle Valves, Sanitary Instruments, Force Measurement, and Differential Pressure Measurement.