Qualitrol 035 Small Oil Level Indicator


Provides continuous indication of the liquid level inside of a transformer’s main tank, conservator tank or load tap changer compartment. Integrated switches allow limit and alarm functions.

Vault Transformer
Works with These Assets


  • 3.75 inch (95.25mm) dial face with lever (radial) or heavy duty gear driven float arm for use in various tank geometry
  • Field replaceable case (dial) can be exchanged without lowering oil level or compromising tank seal
  • Up to 2 adjustable SPDT switches
  • Magnetically coupled for leak free operation
  • Low level and high level alarm control is made possible with the integrated switches
  • Die-cast aluminum casing is coated with thermosetting powdercoat finish
  • UV stabilized polycarbonate lens material resists yellowing with age


  • Up to two independent switch contacts are available, which can be set to operate per individual applications
  • Both industry standard and custom engineered dial markings are available
  • A wide variety of electrical connections are available including QUALITROL quick connects, Military style, ANSI, conduit-ready and terminal box styles
  • Universal replacement case for field replacement
  • Float travel ranges from min to max markings for various tank configurations
  • Tank connection (flange) style, materials, dial style and dial layout
  • Electrical connection types, cable size, lengths and wire colors

Group Created with Sketch. Applications

For indication of oil or liquid level with switches (contacts) for control or alarm functions. Primarily used on oil filled transformers, load tap changers, conservator tanks and other related apparatus where the point of measurement is easily viewed.

This Product Works Well With