Turner Designs Hydrocarbon Instruments (TDHI) is the worldwide leader in the application of on-line UV Fluorescence oil discharge monitors for measuring oil in water. TDHI is in the exclusive business of making on-line instruments based in UV fluorescence detection technology. TDHI is unparalleled in fluorescence (UVF) expertise for oil discharge monitors which measure oil in water. The company has more Fluorescence monitors in service than all of their competition combined. The company maintains an in-house laboratory that is specifically utilized for bilge oil discharge monitoring. Turner Designs utilize in-house instrumentation and expertise to validate instrument performance for bilge oily waste, marine oily water separators, and oil discharge monitoring equipment worldwide.
NAG Marine has exclusive agreements to sell, service, and install the Turner Designs Hydrocarbon Instruments UV Fluorescence monitors to commercial marine markets in the United States. All products have been engineered for shipboard environments and have excellent operational service records in various fleets. NAG Marine's staff of engineers, technicians, and project managers work closely with our customers to help them choose, install, and maintain the most appropriate system to meet the shipboard need. NAG Marine has also developed integrated software systems for bilge alarms and Oily Water Separator oil discharge monitoring.