Bilge alarm
A traditional high water alarm for a boat bilge does one thing: it makes a noise aboard. If nobody is there to hear it, the boat keeps filling. Cloud Shelter's bilge alarm sends the alert to your phone wherever you are — and it watches the bilge pump itself, so it can warn you long before the water is high.
It combines wireless leak sensors, a two-float bilge and water monitor and the Lookout hub, which counts and times every pump run and tells the difference between normal, worrying and urgent.
A bilge pump should never have a busy day. Cloud Shelter logs each run, how long it lasted and how often it happens. A pump that starts cycling more than your boat's normal is flagged as a slow leak — a hose, a stern gland, a seacock — days before it can overwhelm the pump.
A pump that runs and does not stop is a different message, sent while it is still running.
The bilge and water monitor uses two float sensors at different heights. The first tells you water is rising; the second tells you it is high, and how fast it got there. Rate of rise matters: a slow rise is a leak to plan for, a fast one is a reason to call the marina now.
Small wireless leak sensors go under the galley sink, beside the heads, by the water heater or the engine — anywhere a hose can let go. They alert the instant they get wet, long before the water reaches the bilge.
A bilge alarm on its own tells you there is water. Cloud Shelter reads the water level, the pump, shore power and the battery together, so the alert can say what it means: water rising while the boat has lost shore power and the battery is falling is a very different message from a single short pump run on a rainy night.
Alerts go to your phone on Telegram with an acknowledge button, and the Lookout's siren sounds aboard so a neighbour on the pontoon hears it too.
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The bilge and water monitor's floats go at the lowest practical point of the bilge: the lower float just above normal standing water, the upper float a few centimetres higher, well below anything that would be damaged. Leak sensors go where a failure would start — under the galley and heads sinks, beside the water heater and the water pump, by the stern gland and at the foot of the engine bay.
The sensors run on their own batteries and the hub tells you when one is getting low, or when a sensor stops reporting altogether, so a dead sensor is never mistaken for a dry bilge.
What it does not do: it cannot pump water out of the boat or stop a leak — it makes sure you know in time to act. The sensors are wireless; the Lookout hub needs power from the boat.
One that reaches you when you are not aboard. A siren alone only helps if someone hears it. Cloud Shelter's bilge alarm sounds aboard and sends the alert to your phone, and it also watches the pump so it can warn of a slow leak before the water is high.
No. Your pump keeps its own float switch. Cloud Shelter's floats and pump monitoring sit alongside it and tell you what the pump is doing.
It learns your boat's normal pump pattern. A single short run after heavy rain is normal; a pump cycling more often day after day is flagged as a likely leak.
Leak sensors are €25 and the two-float bilge and water monitor is €50, one-off with no monthly fee, on a Lookout hub. The setup builder prices your boat exactly.
Yes — they are wireless and battery-powered. The Lookout hub warns you when a sensor's battery is low or when it stops reporting.
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