Des-Case Oil Level Indicator (OLI) – Clear Visual Monitoring for Oil Reservoirs

Available from Armor Industrial – Your Source for Proactive Lubrication Monitoring

The Des-Case Oil Level Indicator (OLI) allows maintenance teams to quickly and clearly monitor oil levels and conditions in tanks, gearboxes, and reservoirs. Built from high-strength, transparent polyamide, the OLI provides a real-time view of lubricant volume without opening the system.

Designed for easy installation, each indicator includes 1/2” NPT threads on both ends. Red and green markers allow operators to set high and low limits or mark running and idle oil levels. The OLI mounts directly at the reservoir’s drain port, delivering continuous, visual feedback.

Key Features

• Clear Oil Level Visibility

  The see-through tube shows oil level and color, making it easy to identify low levels or contamination at a glance.

• Durable Construction

  Made from chemically resistant polyamide, the OLI handles tough industrial conditions without degrading or cracking.

• Easy Installation

  Each model comes with dual 1/2” NPT male threads for fast setup on standard reservoir ports.

• Color-Coded Reference Markers

  Red and green rings let technicians set level benchmarks to support consistent monitoring and alerts.

• Multiple Lengths Available

  Choose from 3” to 30” lengths to suit different reservoir sizes and sightline requirements.

• Optional Accessories

  Add a non-desiccant breather with 0.3µm filtration or the OLI Headspace Vent Kit for complete fluid system protection.

The Des-Case OLI improves maintenance efficiency by helping teams spot issues early and reduce unplanned downtime. Whether you’re checking tanks, gearboxes, or hydraulic reservoirs, the OLI keeps your team informed—visually and reliably.

Please choose from the options above. To order the right model for your system, contact Armor Industrial, your trusted provider of Des-Case fluid monitoring products.

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