Hey everyone,

If you’re diving with a Salted Line waterproof camera housing, you probably want to be 100% sure your camera is fully protected. That’s exactly why every Salted Line underwater camera housing comes with a factory-installed Leak detection sensor - a small but incredibly important device that many underwater photographers call their “underwater guardian angel.”

In this guide, we explain in simple, straightforward terms how the leak detection sensor works, why it sometimes triggers false alarms, what to do in different situations, and how to take care of it. Everything is based on real feedback from our customers and experienced underwater photographers.

How the Leak Detection Sensor Works

The Leak detection sensor is a compact, battery-powered unit that is pre-installed inside the housing at the factory. It constantly monitors the internal environment and reacts to even the smallest amount of moisture.

As soon as any water or condensation touches the sensor’s contact strip, it instantly triggers a loud audible alarm and/or a visual indicator. This gives you valuable time to surface safely before any serious damage can occur to your camera.

Why False Alarms Sometimes Happen

The leak detection sensor is intentionally very sensitive - and that’s one of its biggest strengths. However, this high sensitivity can occasionally cause false alarms. The most common reason is condensation inside the housing caused by sudden temperature changes (for example, when the camera heats up during shooting). This is completely normal and does not mean water has entered the housing.

What to Do When the Sensor Triggers

1. False Alarm (caused by condensation or high humidity)
   Gently wipe the contact strip with a dry paper towel or lint-free cloth. The sensor will reset immediately and return to normal operation.
   

  2. Real Water Ingress (fresh or salt water)

• Thoroughly dry the contact strip.
• Carefully blow out the sensor’s electronic unit with low-pressure compressed air.
• Replace the battery if necessary.

If the alarm doesn’t stop or the sensor fails to reset properly, replace it with a new one.

How to Replace the Leak Detection Sensor

The Leak detection sensor is a consumable item, just like the O-Rings. Replacing it is quick and simple and takes only a couple of minutes:

• The new sensor comes with a fresh battery already installed.
• Simply attach it in the same place using the double-sided tape provided.

For the full step-by-step guide, check out our YouTube Channel.

Important note: The leak detection sensor is considered a consumable part and is not covered under the standard housing warranty.

Helpful Tips from the Salted Line Team

Here are a few practical tips that will help you get the most out of your sensor and avoid unnecessary stress underwater:

• Before each test, lightly moisten your fingertip and touch the contact strip (if the sensor has triggered, be sure to wipe it completely dry first). 

• Always keep a spare sensor and battery in a sealed bag in your dive bag.

• We recommend replacing the sensor at least once a year as a preventive measure.
  

• For maximum reliability, combine the leak detection sensor with a Vacuum leak detection system - this combination almost eliminates false alarms.

Ready for Safe and Peaceful Dives?

The Leak detection sensor is one of those small details that gives you great peace of mind underwater. When combined with proper housing assembly and a Vacuum leak detection system, it becomes even more reliable.

If you have any questions about how the leak detection sensor works, how to reset it, or how to replace it, feel free to reach out through the contact form on our website, by email at support@saltedline.com, or via our social media channels. We’re always happy to help.

Stay safe, stay dry, and happy shooting!

- The Salted Line Team

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