Clean-room monitoring and contamination-control equipment, Airborne Particle Counters, Aerosol Photometers for HEPA-filter leak testing, Smoke Generators for airflow studies, and Liquid Particle Counters for injectables, is the specialty of Measuretest Instruments, an ISO 9001-certified distributor serving pharmaceutical, electronics, and automotive customers. Founded in 1990, it represents brands such as Lighthouse Worldwide Solutions and Air Techniques International and offers calibration, training, and after-sales service from offices in Mumbai and Hyderabad. Backed by founder Sheesh Gulati's 50-plus years of experience, the company exports worldwide and supports clients such as TATA Steel.