6600 Liquid Level Indicator

6600 Liquid Level Indicator

The 6600 Liquid Level Indicator (LLI) is an economical, non-powered, easy to install measurement device utilizing a float inside the tank that is connected to an indicator in a clear tube mounted outside of the tank.

  • Overview
  • Specifications
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  • Resources
  • Related Products

Economical, Durable Design6600 LLI Close Up

The 6600 LLI is one of the simplest measurement product on the market today. A float inside the tank is connected to an indicator in a clear tube mounted outside of the tank. The indicator moves up and down based on the level of product in the tank. With its bright orange indicator, level can be determined safely from the ground and from a distance.


Easy-to-Read Display

The indicator displays liquid level (product image) to an accuracy of 1″ (25 mm). Designed for use on mobile tanks, the 6600 may be installed on both in-service and out-of-service tanks.



6600 LLI IllustrationOn Your Tank

Changes in the liquid level of the tank raise or lower the float, which moves the indicator cable. Cable movement drives the indicator up and down the gauge tube on the side of the tank. The liquid level in feet and inches or meters and decimeters is shown by the indicator position on the gaugeboard.




Training and Support

Every part of the 6600 LLI is supplied with detailed user instructions. If you need direct support, we offer standard training and service programs that we tailor to your staff, and your site/facility.


1″ (25 mm)

Measuring Range

Standard 0 – 8 ft (2.4 m)

Material Specifications
  • Indicator Tubes – Polycarbonate
  • Sheave elbows – 360 Aluminum
  • Indicator Sight Target – PVC
  • Float – Type 316 Stainless Steel
  • Float cable – Type 316 Stainless Steel
  • Guide cable – 3/32″ Diameter Type 316 Stainless Steel
  • Top anchors – Steel
  • Bottom anchors – Steel
  • Cable fastener – Type 316 Stainless Steel
  • Cable crimp – Type 316 Stainless Steel
  • Operating Range – Full Travel: 8 ft. Maximum

For complete technical specifications, download the technical document or product manual.

  • Manways and Inspection Covers
  • Float Grounding Kit
  • Teflon Tape Wipe
  • Extension Bracket Kit
  • Reinforcing Bracket
  • Shock Absorber
02 Units
  • English
  • Metric


6600 Liquid Level Indicator Data Sheet
The gauge in the 6600 LLI tube provides an easy-to-use measurement scale to illustrate product levels up to eight feet.

Technical Specifications

6600 Liquid Level Indicator Technical Specifications
This is the technical specifications for the 6600 Liquid Level Indicator gauge tube for tank level measurement.


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6600 Liquid Level Indicator Installation and Operations
This is the installation and operations manual for the 6600 Liquid Level Indicator gauge tube for tank level measurement.
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