Met One Instruments is an expanding, aggressive company providing solutions to environmental monitoring including meteorological, particles, datalogging.software instruments.solutions. By using modern technology.innovative design, combined with years of experience in a variety of situations, we are able to meet the needs of our customers for ambient.indoor monitoring requirements. For additional information on weather stations, particulates.dust monitoring systems engineered specifically for your requirements, please contact one of our sales staff listed under .Contacts..Met One Instruments Inc. is one of the leaders in research, development.manufacture of meteorological instruments, particulate monitors, data loggers.environmental software. One of the oldest instrument manufacturer.s in the United States, MOI continues to provide the leading edge in instrumentation, data logging, environmental software.monitoring systems worldwide.