Water Tank Senders & Gauges

Our Water Tank Senders & Gauges range covers the sending units and helm or panel gauges that let you monitor freshwater tank level, so you know how much is left before you’re caught out.

This works the same way as our Fuel Tank Senders & Gauges range but for the freshwater system – the two aren’t interchangeable, so check you’re ordering the right one for the tank you’re monitoring. Match the sender’s resistance range and mounting to your existing gauge, or replace both together if you’re unsure of compatibility. Running low on water unexpectedly is mostly an inconvenience rather than a safety issue (unlike fuel), but a working gauge still makes planning a trip or passage considerably easier, particularly if you’re living aboard or cruising for several days between refills.

Frequently asked questions

Is this the same as a fuel gauge system?

Same principle, different system – freshwater and fuel senders/gauges aren’t interchangeable, so order the one matching the tank you’re monitoring.

Do I need to replace the sender and gauge together?

Not always, but check the resistance range matches if replacing just one – mismatched pairs read inaccurately.