Oil in water monitoring leader, Turner Designs Hydrocarbon Instruments, Inc. will be displaying the ATEX zone II certified TD-4100 XD continuous online oil in water monitor along with their highly successful TD-500 handheld oil in water analyzer at Offshore Northern Seas (ONS) 2004. Please visit Turner Designs Hydrocarbon Instruments, Inc. at the USA pavilion (Hall H, booth # 817), Offshore Northern Seas (ONS) 2004 in Stavanger, Norway, August 24-27, 2004.