The fastest method available to determine volumes of oil/dielectric fluid in water filled enclosed vaults. Measurements within 10 seconds or less!   How it works Video demonstration How to purchase When it comes to oil on water: It's OK to cry WOLFTape!TM       L&M Associates Engineering Rep. Inc. 440 Market Street Elmwood Park, NJ 07407 T: 201-797-0441 F: 201-797-9504 kevin@lmassociates.com