| Senzors, Inc. http://www.senzors.com/ Manufacturer of pressure sensors, submersible level transducers and pressure transducers and transmitters. In English, German, and French. | |
| Sensorpro http://www.sensorpro.com/ Manufacturer of sensors and transducers for temperature, position, speed, pressure, flow and electric current measurement. | |
| SensoreX http://www.sensorex.com/ Manufacturer of pH, ORP, conductivity and dissolved oxygen sensors and electrodes for portable, laboratory, and industrial process applications. | |
| SensorPulse http://www.sensorpulse.com/ Manufactures signal conditioners, isolators, PLC I/O, and power supplies in terminal block packages. Product photos and specifications. | |
| SensoTech http://www.sensotech.com/ Manufacturers of measuring and analytical instruments as well as test stand equipment. | |
| Sensirion http://www.sensirion.com/ Manufacturer of sensor solutions for humidity, liquid flow and differential pressure, and mass flow controllers. From Switzerland. | |
| Sencera Company Ltd. http://www.sensorelement.com/ Manufacturer of shock, tilt, gas and humidity sensors from Taiwan. | |
| Scientific Devices Pvt Ltd. http://www.scientificdevices.org/ Manufacturers of level, pressure, flow and temperature measuring instruments used for chemical process, petrochemicals, powergeneration and cement industries. From India. | |
| Scientific Computing International http://www.sci-soft.com/Metrology.htm Provides thin film metrology systems, thin film design software, and material characterization tools to the semiconductor and optical coating industries. | |
| Scanivalve Corporation http://www.scanivalve.com/ Manufacturer of temperature and pressure measurement modules. Product specifications, application sheets and whitepapers, and list of customers. | |
| Scale-Tron Inc. http://www.scaletron.com/ Batching controls, moisture measurement, mixers and silo inventory systems for concrete plants, weighing systems and load cells. | |
| Scalar Technologies http://www.scalartechnologies.com/ Manufactures a range of thin film measurement devices that measures thickness, or coat weight, as low as one millionth of a millimetre (0.001 grammes per square metre) in-line. | |
| SST Limited http://www.sstsensing.com/ Manufacturer of liquid level, pressure, and optical sensors, and proximity switches for aviation, medical, transport, commercial, industrial and marine applications. | |
| SSI Technologies http://www.ssitechnologies.com/ Manufacturer of pressure, ultrasonic level and magnetic sensors, digital gauges and powder metal components for automotive and industrial applications. | |
| SMT and Hybrid GmbH http://www.smt-hybrid.de/ Shock, climate, and turbidity measurement. | |
| SICK http://www.sick.com/ Manufacture of sensors that sort, count, inspect, measure, size and overall shape of objects, contrast sensors, luminescence sensors recognize fluorescent markings, labels, threads, lubricants and adhesives. | |
| SAMAR S.r.l. http://www.samar-instruments.it/ A supplier of equipment for electronic training for industrial and educational laboratories. Based in Italy. | |
| Ruelco Companies, L.L.C. http://www.ruelco.com/ Designs, manufactures, fabricates, installs and services process control instrumentation, safety systems, control panels and related elements. | |
| Roland Electronic GmbH http://www.roland-electronic.com/ Sensors and electronic systems for the sheet metal processing and tire industries. | |
| Rocoil Rogowski Coils Ltd. http://homepage.ntlworld.com/rocoil/ Supply of transducers measuring electric current from less than an amp to several million amps. Describes the theory and applications of these devices. | |