Maintains oil level


Visual indication of oil level


Supplies a reserve of oil

closed system oiler with desiccant breather on pump

What are constant level oilers?

Constant level oilers are designed to maintain a predetermined oil level in a pump bearing housing, gear box, or other oil sump applications. If the oil level drops below a certain point, the depleted oil automatically self-levels based on the constant level oilers volume. This adds the perfect amount of lubricant every time increasing efficiencies and scheduling of routine maintenance.

Choosing a Constant Level Oiler

We have many different options available depending on your specific application.

Reservoir Material


Body Material

Reservoir Capacity

Mounting Options

Venting Type

Sight Gauge

Wire Guard

Sensor technology

Constant Level Oilers

Sensei Oil Level Monitoring
Closed System Opto-Matic w/Sight Gauge
Closed System
Opto-Matic Oiler
Watchdog Oilers
Watchdog Closed system oiler
Opto-Matic Oiler – Glass
Opto-Matic Oiler
Glass Reservoir
Opto-Matic Oilers – Plastic
Opto-Matic Oiler
Plastic reservoir
Opto Laser Level
Opto Laser
Wire Guards
Wire Gaurd
Replacement Reservoir Assemblies
Replacement Reservoir assembly

No more unnecessary trips to equipment

Reduce maintenance trips, improve equipment performance, and gain full control of your industrial equipment at anytime from anywhere!

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