Join our Beta-Test! the first 10 applications will receive a free Impeller Saver Kit in exchange for feedback.

Protect your Impeller.

The Impeller Saver warns you if your engine’s cooling water intake (thru-hull) is closed, before it’s too late.
It will save your Impeller from burning up and potentially even bigger problems

✔ Tried and tested by cruisers

✔ Simple to install

✔ Budget-friendly

✔ 30- day Money-back guarantee

One Simple Mistake. Big Consequences.

Closed thru-hulls are one of the most common causes of destroyed impellers and impeller damage often leads to overheating, engine damage, and expensive repairs.

And you’re not alone!

Research shows, about 80% of cruisers have accidentally started their engine with the raw water seacock closed. Over 40% damaged their impeller in the process.

🔥 Overheating damage

🛠️ Impeller destruction

💸 Costly engine repairs

🧠 Stress & mental load

Meet the Impeller Saver.

The Impeller Saver is a small sensor that alerts you with a light or sound if the thru-hull is closed before starting the engine. A product that over 94% of cruisers are interested in - and here it is!

The Benefits

The Impeller Saver is compact, affordable, and designed to work on nearly any boat. It’s easy to install with the included step-by-step guide and wiring diagram, no professional help needed.

Need help? We offer free installation support via video call if you get stuck.

And if it turns out it’s not the right fit for your setup, you’re covered by our 30-day money-back guarantee, no hard feelings.

Works on all boats

DIY-friendly
& Installation support

Compact and budget-friendly

30-Day money back guarantee

No Need for Complex Systems

Most alternatives are expensive, complicated, or require professional install.

The Impeller Saver is different: it’s affordable, straightforward, easy to install and gives you exactly what you need.

Nothing more, nothing less.

✺ Frequently asked questions ✺

  • If your engine through-hull utilizes a standard ball valve with a handle that rotates 90 degrees from open to close, yes!
    If you’re unsure feel free to contact us!

  • The Impeller Saver is designed to be simple to install. It includes a detailed installation guide with pictures, wiring diagrams and technical specifications.

  • If you feel like you can do it but just need some help, we’re always happy to assist via phone or video chat. If you aren’t comfortable doing the installation yourself, you can always have a qualified marine electrician perform the work.

  • As experienced cruisers we know how important good technical support is. We are available for questions before or after your purchase and are committed to making sure you have all the information you need.
    Feel free to send us an email: info@safety4cruisers.com

  • We include the sensor, alerts of your choosing, connectors, zip ties, double sided tape, and a clear installation guide.

  • We include all the critical components but you will need to have your own wire to connect the components, and whatever terminals are needed to connect to to your ground/power sources.

  • Because having it on the positive leg would require significantly longer, more extensive and difficult wiring.

  • Yes. Both the sensor and LED are IP67 rated. The audio buzzer is not and we recommend it is mounted in a dry location behind the engine control panel.