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.

Anyone who has ever been free camping will know the importance of keeping track of exactly how much water is left in your tanks. The digital LCD screen actually shows the number of litres remaining in your tank, rather than the traditional full/half/empty display. Travellers can plan ahead for their journeys by enabling them to check the average number of litres used each day.  You can also check how many litres each person uses in the shower!  It is then easy to calculate how many days you will get out of one tank or if you are already on your journey, look at the remaining litres to determine how many days supply is available.  This is a valuable safety feature, especially in remote areas as you will know if you need to conserve water or will safely make it to your next destination.  It is also a handy way of ensuring you won't run out of water mid-shower!  Installation is very simple. The sender is fitted to the hose line and the good news is there is nothing fitted to the tank!  This solves the problem of having to remove the tank, drill holes, remove filings, seal sender holes, ongoing cleaning/maintenance, etc. Another advantage is if that if you have multiple tanks or add more tanks at any stage you can simply change the programmed amount to suit your new capacity. Two models are available, the H2F-SM will operate for up to 2 years on the two AA batteries supplied and H2F-FM has a larger screen and is 12 volt.

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.
• Battery powered

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 (Min flow 1.5 L/M).