Jerguson® Magnicator® Magnetic Level Indicator


The Magnicator Indicator is connected to a process vessel.  The chamber, or “column”, contains a sealed float with a permanent magnet assembly which rises and falls as the liquid level changes in the process vessel.  The permanent magnet assembly in the float is magnetically coupled to an indicator, which is mounted externally to the gage column but completely isolated from the process liquid.  Indicator flags are rotated by the float magnet assembly as it moves up and down in the chamber providing highly visible indication of where the level is inside of the vessel.


Magnetic Liquid Level Indicators are an attractive alternative to sight glasses for many applications. They provide improved visibility, reduced maintenance, and eliminate leak paths associated with sealing glass.  Reducing leak paths is critical amongst many users for flammable or toxic service.

Safe and versatile level indicating device that can be used in:

  • Acid tanks
  • Offshore Production Platforms
  • Ethylene
  • Propanel Butane
  • Compressor Oil Sumps
  • Boiler Feedwater Heaters
  • Sodium Hydroxide
  • Drip legs, Steam or Hydrocarbon Condensate
  • Interface Applications (Oil/Water)
  • Separators (Anderson Separator)
  • Propane
  • Slurry Tanks
  • Benzene
  • Light Paraffins
  • Natural Gas
  • And Many Others



Brochure: Magnicator Magnetic Liquid Level Indicator Brochure

Drawings: Magnicator Magnetic Liquid Level Indicator Drawings

IOM: Magnicator Magnetic Liquid Level Indicator Installation, Operation and Maintenance Instruction Manual

Configuration Guide: Magnicator Model Code

Mag-In-A-Day Configuration Guide

Application Sheets:
Magnicator Application Sheet
Magnicator Retrofit Application Sheet


Specialty Gages

Avoid false readings in boiling fluids and eliminate crushed floats due to flashing Redundant sensing technologies for the ultimate in reliable level indication Economical magnetic gage features single bar magnet float

Options & Accessories

  • Hot Insulation
PTFE coated & impregnated fiberglass, 1" thickness standard, up to 500°F (537°C) (Contact Factory for higher temperatures)
  • Cryogenic Insulation
Polyisocyanurate foam insulation, with Non-frost indicator extension
  • Steam Tracing
  • Electric Heat Tracing


IP-68 Certified Magnicator® Flag Indicators For Hazardous Applications and Offshore Duty The NightStar® provides superior plant-wide visibility of flag indicators in low or no-light environments and is equally as visible in day or direct sunlight conditions.

Transmitters & Switches

Two wire. 4-20 mA loop powered, proportional transmitter Magnetic Reed Switch transmitter for use with the Magnicator Externally mounted switch for Magnicator Gauge Chamber. Point Level switch actuated by Magnicator float.