The World Leader in Optical Sensor Innovation

Our name has become synonymous with advanced weather/environmental instruments that open a new avenue to twenty-first century technologies. OSi's instruments and systems work reliably for unattended field operations - 24 hours a day, 7 days a week - and often in critical areas such as airports, along highways and railroads, in forests, on data buoys in the middle of oceans, and even in the Antarctic.

Featured Product

OFS-2000 Optical Flow Sensor

OSi's patented Optical Flow Sensor (OFS) makes drift-free measurements across the entire stack, duct or pipe diameter and calculates an accurate average flow reading.