RCModelElectronic Water detector switch
These water switches are a superb addition to your boat, capable of being utilized in many ways.
Case measures 15mm x 25mm x 35mm. The board may be removed from the case in order to reduce overall size.
During operation, the unit monitors the voltage between the supplied probes. Once water is detected, it moves a servo or device to a pre-determined position. This would be useful to automatically blow ballast if water is detected in your watertight compartment. It can also be used to detect high and low status of your ballast tank, or whether the boat is surfaced or submerged. The only limit is your creativity and skill!
These units also include a remote LED light that can give visual indication of water detection. Mount in your sail so that you can see if water has been detected aboard so you can bring the boat ashore for inspection.