Cosasco (Rohrback Cosasco Systems Inc)

Corrosion Monitoring

Cosasco (previously known as RCS) is the world leader in corrosion monitoring technology.

Products and services

  • Corrosion monitoring systems
  • Field Services and Training
  • Chemical injection of corrosion inhibitors
  • Sand erosion monitoring products for oil and gas wells
  • Downhole Corrosion Monitoring
  • Corrosion data capture and management software


  • Oil and gas
  • Water industry
  • Process, industry and plant
  • Environmental
  • Pharmaceutical and biotechnology

Since 1950, Cosasco has provided leading-edge corrosion monitoring and chemical injection solutions for many industries. The company designs and manufactures corrosion monitoring and chemical injection systems and equipment including instrumentation, probes, coupons, mechanical access systems, and integrated corrosion management servers and software.

Corrosion is the cause of enormous costs to many industries in equipment maintenance and replacement, leaks, and system failures. Cosasco helps dramatically reduce this waste and protect against danger and damage by delivering corrosion monitoring equipment and services, extending equipment and asset life and maintaining safe operational conditions.

Cosasco joined Halma in May 2014. Its headquarters are in California, USA, with regional offices in Canada, the UK, Singapore, China, the UAE and Australia.

The company operates within the Halma Process Safety Sector.

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Accreditation and standards

Cosasco is fully certified and compliant with BSI EN ISO 9001:2008 Certification.

Many of the company’s products also conform to CE and ATEX product standards. Cosasco is committed to quality and is continually in the process of bringing additional products into compliance with these equipment directives.


Head Office location

Cosasco, 11841 Smith Avenue Santa Fe Springs, CA 90670 USA

Tel: +1 800-635-6898
Tel: +1 562-949-0123
Email: Contact form

Tel: +44 (0) 1224 825500

Tel: +1 780 467-0949

Tel: +971 6 5579630

Tel: +65 6255 2822

Tel: +8610 6551 6135

Tel: +61 8 9207 2578