Stem s.r.l. - Manufacture of proximity magnetic sensors, magnetic units, and float switches for the industry. SICK AG - Manufacture of non contact sensors. From Germany. Stedham Electronics - Manufacture a range of capacitive proximity sensors. Data sheets in PDF. Tri-Tronics Co., Inc. - Manufactures photoelectric sensors and fiber-optic light guides. Capacitec, Inc. - Manufacturer for precision movement detectors, part-dimensional sizing, thin gap sensors and strain extensometry for material strength testing. Whitman Controls - Manufactures miniature pressure, vacuum, temperature, differential pressure, and liquid level switch industries. Contrinex - Manufacture proximity switches with online line card, catalogues, cross reference lists and PDF application notes. Sensatech Ltd - Produces custom electronic non-contact sensing solutions primarily based on capacitive and electric field sensing techniques for proximity switches and sensing arrays. Accent - India manufacturer of inductive and capacitive proximity switches, photoelectric sensors, and potentiometric transducers. Company overview and product descriptions. Selet Sensor - Manufacturer inductive and catacitive sensors, photoelectric sensors, proximity switches, digital instruments and encorders. From Italy. Reed Electronics AG - Manufacturer of level switches, magnetic float switches, level sensing elements, bypasses, ultrasonic Sensors, radar sensors, and proximity switches. Based in Switzerland. Zhongxu Microelectronics Co., Ltd. - Manufacturer of magnetic sensors using series Hall effect sensors. From China. Sensor Solutions Corp - Manufactures magnetic hall effect and magnetoresistive sensors, transducers and switches for linear or rotational speed, direction, and position that detect ferrous metals.