Robert Owen Inc. is a small U.S. manufacturer that builds sensor signal-conditioning hardware and measurement systems, pairing standard modules with custom electronics and software when a project requires something unusual. Its specialty is connecting sensors—from a single remote temperature point to networks of hundreds—with PLCs, computers, and data-acquisition applications, including wireless monitoring across obstacles. The company makes its products in the USA and ships worldwide.
Atlas ScientificAtlas Scientific is a Long Island City manufacturer known for building embedded chemical-sensing hardware for engineers developing robots, automated equipment, and environmental monitors. Its made-in-the-USA products are designed to bring accurate measurements into microcontroller-based systems, with the company also supporting those applications through ready-to-use monitoring kits.LONG IS CITY, NY
PHILTEC, IncSince 1988, Annapolis-based PHILTEC, Inc. has designed and built custom fiber optic displacement sensor systems for accurate, non-contact measurement in environments ranging from aerospace test stands to cryogenic liquids and ultra-high vacuum. Its engineers tailor probes, fiber cables, and signal hardware for specialized installations, with more than 70% of its products receiving custom engineering. PHILTEC’s sensors are built in the USA and sold through a global network.ANNAPOLIS, MD
Probes Unlimited, IncFounded in 1992 in Lansdale, Pennsylvania, Probes Unlimited designs and manufactures custom OEM temperature sensors and control devices. The privately held company was acquired by Ernest DeLany in 1999 and pairs in-house engineering experience with flexible production for both low-volume builds and automated high-volume assemblies. Its service can extend from sensor design through installation, with NIST-traceable calibration available for custom precision sensors.LANSDALE, PA