Since 1799, Casella has made precision instruments for occupational hygiene and environmental monitoring, helping workplaces and communities measure health risks. The Bedford-based company traces its instrumentation heritage through work supplied to explorers and scientists including David Livingstone and Charles Darwin, and today is especially known for practical monitoring solutions such as its Guardian2 remote boundary monitor.
IEC 61672-1 compliant noise measurements
Compliance program
ISO 13137 compliant flow accuracy
Compliance program
Industrial ScientificIndustrial Scientific makes connected gas detectors and safety software for hazardous workplaces, extending its work from methane-detection instrumentation into remote monitoring and safety management. Born in 1976 as the research division of National Mine Service and operating as an independent company since 1985, it developed the first three-gas, six-gas, and wireless gas monitors. The Pittsburgh-based company has more than 1,300 employees worldwide and holds ISO 9001, ISO 14001, and ISO 45001 certifications.PITTSBURGH, PA
Clarke Analytical Instruments, IncFounded in 1996 by President and CEO Bill Clarke, Clarke Analytical Instruments is a manufacturer, master distributor and manufacturer’s representative for analytical instruments serving environmental, health and safety organizations across North America and worldwide. Based in Radnor, Pennsylvania, the company supplies equipment for OSHA and EPA compliance and provides technical expertise, along with training and calibration for instruments it sells or rents. Its team brings more than 60 years of combined technical, product and market experience to laboratory, industrial hygiene, process-control and personal-monitoring applications.RADNOR TOWNSHIP, PA
Columbus InstrumentsSince 1970, Columbus Instruments has designed and manufactured scientific instruments for monitoring behavior and physiology in laboratory animals, along with environmental research systems. Founded by Dr. Jan Czekajewski, the Columbus, Ohio company pioneered commercially available activity monitors and indirect calorimetry, later developing its Micro-Oxymax respirometer in response to EPA remediation research after the Exxon Valdez spill. Its in-house engineering team continues to build customizable instruments used by researchers worldwide, with more than 21,000 scientific citations.COLUMBUS, OH
CASSEL Messtechnik GmbHFounded in 1994 by Cord Cassel, CASSEL Messtechnik GmbH designs and manufactures industrial inspection systems that detect contaminants, verify weights, and protect production lines. From its German production facilities, the company builds customized metal detectors and X-ray inspection equipment for demanding applications ranging from food and pharmaceuticals to timber, mining, and recycling. CASSEL produces approximately 1,000 units annually and supports manufacturers around the world with technical service.HARRISON, OH