The Oil Level Sight Gauge is a device that provides a visual indication of the level of oil in a unit. It provides a visual means of assessing the oil level. It's generally mounted on the exterior of the unit and calibrated to show the volume or depth of oil inside. The interior of the gauge is in direct contact with the fluid inside the unit, and because oil is less dense than the surrounding air, it rises inside the gauge to the same height as the oil in the reservoir. Attributes:• Withstands harsh operating conditions and continues to function reliably• Prevents unit damage by alerting to potential oil-related issuesApplications:The Oil Level Sight Gauge is used to monitor the oil levels in the Radiator, Shaft Hub, Hydraulic Propel Piston Motor, Belt Tensioner, Parking Brake, and Hydraulic Tank.