RV Tank Monitors

The SeeLeveL™ RV Tank Monitor represent a massive leap forward in level measurement technology for the Recreational Vehicle industry.
The SeeLeveL II™ and SeeLeveL III™ have a combination of features, accuracy, reliability, and diagnostic capability that have never been available before.

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About RV Gauges

The SeeLeveL II™ RV Tank Monitor series is available in many different configurations to meet most any motorhome, fifth wheel or travel trailer tank configuration. Each system provides tank level information using a percentage of full readout. Detailed diagnostic information is available through the system monitor and systems are available to monitor up to 4 tanks, battery voltage and LP levels.


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FMCA 93rd Family Reunion and Motorhome Showcase

September 22, 2015 The Family Motor Coach Association (FMCA) 93rd Family Reunion and Motorhome Showcase will be on March 17 - 20, 2016 at the Georgia National Fairgrounds and Agricenter in Perry, Georgia. We will have a booth set up at #902, 904 for March 18 - 20 and we will have installation services…

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Learn More About RV Tank Monitors

The Seelevel System







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Have you experienced unreliable readings or false full readings just after you know you have drained the tanks? Does the resolution of 1/3 or 1/4 fail to meet your needs, especially when dry camping for extended periods?  The SeeLeveL II and SeeLeveL III solves these issues and more.

Features Benefits


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This chart makes it easy to see all the features to find out which version works for you.

 RV Comparison Chart

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  • Holding tanks must be non-conductive material (eg. plastic), system will not work on metal tanks.
  • Tanks less than 7 inches in height will require a 710JS senders due to better resolution ( 6 inches X 4 = 24 measurements vs the 710ES at 16 4 segments X 4)
  • Tanks over 12 inches may be double stacked. See manual for details.
  • Purchase extra senders if required when placing your order:


  • A second display can be used to allow tank level viewing in the service bay.
  • To purchase additional display select appropriate model under the “Displays Only” category.

Select this link to view our list of OEM Manufacturers installing our SeeLeveL II RV monitoring systems.