The Oil Smart system works by setting off an alarm when any oil or a high water level is detected. It uses lights and audio alarms to specify if it was water and/or oil that caused the alarm to go off. This is important because an undetected oil leak can lead to equipment failure and damage to the environment. High water levels can lead to water damage and equipment damages as well. The Oil Smart® system  benefits the customer by alerting them early on, so they can fix the problem before any real damages occur. This pump is great for elevator sumps, transformer vaults and manufacturing facilities.