6700 Liquid Level Indicator
The 6700 Liquid Level Indicator (LLI) is a tank side device that uses a target and gauge board to indicate product level in a bulk storage tank. This simple and reliable float and tape based product has been used for managing inventory in the oil and gas industry for more than 80 years.
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Economical, Durable Design
This is the simplest measurement product on the market today. A float follows the liquid level as it changes in the tank, which then moves the indicator cable up and down the aluminum gaugeboard. This simple technology will not break your budget.
Choose the units that fit your business, either in feet/inches or meters/decimeters. A large format scale is printed on a durable vinyl facing that can be seen at a distance.
On Your Tank
Select the installation kit suitable for your bulk liquid storage tank. We also supply many accessories, such as manway covers, inspection covers, oil seals, tank brackets and more. If you have one of our competitors’ boards we can easily upgrade the gaugeboard, float, or tape, without replacing the hard mounted tank fittings.
Get more out of your existing liquid level indicator — Varec’s magnetic limit sensors go hand-in-hand with any tankside gaugeboard or liquid level indicator. Kits are available with one to four sensors; simply bolt each sensor to the gaugeboard at the height you need an alarm and wire them to your system.
Training and Support
The 6700 LLI, its accessories, and it’s spare parts are available to ship today. Every part is supplied with detailed user instructions, but sometimes you need to see how it’s done. That’s why we also have a YouTube channel with basic how-to-videos. If you need direct support, we offer standard training and service programs that we tailor to your staff, and your facility.
Product Gravity Range
0.7 to 1.9 g/cc (700‐1900 kg/m³) specific gravity
1″ (25 mm)
Standard 0 – 62 ft (23 m)
Extended 0 – 96 ft (29 m) Half Travel Kits
Ambient Temperature Range
‐30 °F to +160 °F (‐34 °C to +71 °C)
For complete technical specifications, download the technical document or product manual.
01 Tank Type
03 Measuring Distance
Parts and Accessories