What do you look for when choosing the right meter for your business... Accuracy, Quality, Reliability, Reputation? After all, your bottom line depends on the meter you use so all of these things are important. Refined Fuel Marketers have trusted their profits to Schlumberger Neptune for over 100 years. Schlumberger Neptune Refined Fuel Meters are backed by a century of flowmetering experience and are looking forward to a future full of possibilities. Put the strength of the world's largest precision measurement company to work for you.