Established in October 1981, Applied Electroptics & Instruments (AEI) was founded with a clear objective: to design and manufacture advanced scientific and electronic instruments tailored to the needs of India’s evolving industrial sectors. With a focus on innovation and self-reliance, AEI has played a key role in supporting import substitution by offering high-quality indigenous solutions.

The founding team brought together decades of expertise in scientific instrumentation, microprocessor systems, and control technologies. Over the past four decades, AEI has developed and delivered a wide range of digital and microprocessor-based instrumentation for industrial measurement and control. The company is widely recognized as one of India’s most reliable manufacturers of retrofit and modernization solutions for Optical Emission Spectrometers (OES) offering comprehensive upgrade programs for various makes and models.

In addition to OES modernization, AEI has successfully developed and deployed:

• Dissolved Oxygen Analyzers for molten metal and flue gas applications
• Programmable Logic Controllers (PLC) for process automation
• Integrated control systems for multicar elevators, in collaboration with Eros Elevators, one of India’s oldest elevator companies

Today, AEI stands as a trusted name in the field of industrial instrumentation, known for its engineering excellence, customer-centric approach, and a sustained commitment to delivering quality solutions to clients across the country.