Topargee Water Tank Gauge

Ever wondered, "Have I got enough water to stay another one or two days?".  When free camping, we all know the importance of keeping track of exactly how much water is left in your tanks.Our new H2F-FM Water Tank Gauge now features a larger backlit screen that actually shows the number of litres remaining in your tank, rather than the traditional full/half/empty display.This makes it easy to know your average daily water usage and to help plan your next adventure.The good news is the sender is fitted in the hose line and there is nothing fitted to the tank.We now have two exclusive RV & marine models, one suited more to the DIY aftermarket H2F-SM and our new flush mount H2F-FM designed to provide a superior appearance to more closely match the other displays in new RVs and boats.

Breakthrough Design for the RV and Marine Industries

• Takes all the guess work out of your water supply.
• Displays number of litres left in your water tank.
• Counts down litre by litre from a preset amount.
• Stop wasting fuel by filling up unnecessarily.
• Know how much is used for washing, showers etc.
• Know your daily water usage in litres
• Essential for bush/ free camping.
• Fitted in water line, nothing is fitted to water tanks.
• One unit can be used for any number or size tanks.
• ​Displays in gallons or litres.
• It can be used in conjunction with your current system to accurately know your capacity and usage.

Please note the minimum flow is 1.5 LPM.

N.B. Does not include hose connectors, see Connecting Sender Unit below.
Our new RV senders and electronics are compatible with all commonly available RV and marine water pumps and will even work with gravity fed systems.
We now have two exclusive RV & marine models, one suited more to the DIY aftermarket H2F-SM and our new flush mount H2F-FM (this page) designed to provide a superior appearance to more closely match the other displays in new RVs and boats.

How is the Flush Mount model installed?

The H2F-FM gauge uses an inline flow meter fitted into the water line after your pump and before any filters or taps. There’s no need to drill into or drop the tank, making it ideal for retrofits or upgrades. It connects with two John Guest fittings (sold separately) for a quick and tidy install.

What’s the difference between the Flush Mount and Bluetooth models?

The Flush Mount version displays litres remaining directly on its screen. The Bluetooth version sends readings to your phone via an app, so you can check water levels from your camping chair. Both use the same inline flow meter technology.