The Oil Monitor from OPECL series of products are designed for Automatic adjustment of the optimal oil lubrication level within a   bearing housing, gear box, crank case or similar oil bath application.
They effectively solve the problem of Adjusting the correct oil level during running conditions rather than during stand-still. Furthermore, they will automatically compensate for oil leakage and offer the possibility for visual inspection of the oil level. The oil leveler will not compensate if the oil level is too high.