Ever wondered how much water you really have left in your tank—or if it’s enough to get you through another day of off-grid travel, free camping or boating?

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With Topargee’s exclusive water tank gauges, there's no more guesswork!

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Our innovative digital gauges count down water usage by the litre or gallon, helping RV, caravan and marine travellers manage water with total confidence—whether you're on the road or at sea.

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Choose the gauge that suits your setup:

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• H2F-BT12 Bluetooth – View usage on your smartphone or tablet via our app

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• H2F-FM Flush Mount – Sleek, built-in display for a seamless dashboard finish

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• H2F-SM Surface Mount – Perfect for DIY retrofits or aftermarket upgrades

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​Top Reasons RVers, Caravanners & Boaters Choose Topargee:​

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• Know your daily water usage and how much is left—to the exact LITRE or GALLON

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• Simple, non-invasive installation—no drilling into tanks, fits into your water line

 

• The senders and electronics are compatible with most RV, Caravan and Marine water pumps

 

• Works with gravity fed systems​

 

• Each time you refill the tank, you simply reset the display & it will countdown showing you the exact # of litres remaining in your tank

       

• One unit can be used for multiple tanks that run through the same pump.  This is regardless of the size of the tanks

 

• Far more accurate than traditional full/half/empty tank indicators

 

• Can be used alongside existing systems for precise tracking

 

• This is a MUST have for those who love the adventures of bush, boondocking, free camping, off-grid cruising, and extended anchoring