No water, no oil - Pump will not run

Water only - Pump will start running at approximately 10" and will run until water is below the lower probe (4").

Water and oil - Pump will start running at approximately 10" of water and run until oil reaches the lower probe (4") and then stop; if water continues to flow into the pit, the pump will run until the oil reaches the lower probe.

Oil only - Pump will not run. If the oil level reaches approximately 12" the high oil/water alarm will sound.

High oil/water alarm -The high oil/water alarm will sound if oil is present and the level in the pit reaches approximately 12" or if the water level in the pit reaches approximately 12" warning that the pump has failed.

WARNING: The switch and pump are not rated for explosive environments. This product is intended for hydraulic oils only.