ReefSense Leak Detector
Water type
Marine
Fits
Red Sea ReefControl Lite, Red Sea ReefControl Pro
Part no.
BA9029
ReefSense Leak Detector
Catches a leak before it becomes a flooded cabinet. The Red Sea ReefSense Leak Detector is a contact sensor that plugs into a ReefControl Lite or Pro controller: the moment its contacts touch water, ReefBeat fires an alert to your phone, and — paired with a ReefControl Power outlet — it can shut the offending pump off automatically. It needs a ReefControl controller to work; it is not a standalone alarm.
Key features
- Instant contact alert — fires in ReefBeat the moment water touches the sensor, not after it has pooled.
- Automatic pump shutoff — paired with a ReefControl Power outlet, it can cut power to the pump causing the leak.
- Wall-mount or lay flat — sits under the sump, behind the cabinet, or below plumbing fittings, wherever water actually ends up first.
- No calibration, no wear parts — nothing to replace or recalibrate; wipe it dry after a trigger and it's ready again.
- Genuine Red Sea ReefSense sensor — built for the ReefControl ecosystem, not a generic float switch.
Specifications
| Brand | Red Sea |
|---|---|
| Type | Contact-based water leak sensor |
| SKU | BA9029 |
| Connects via | ReefSense port on ReefControl Lite or Pro |
| Automation | Can trigger automatic pump shutoff via a connected ReefControl Power outlet |
| Calibration | None required |
| Reusable | Yes — wipe dry and reset after an alert |
| Warranty | 24 months |
What's included / Not included
In the box: one ReefSense Leak Detector sensor.
Not included, and required for it to do anything: a ReefControl Lite or ReefControl Pro controller, which provides the ReefSense port it plugs into and runs the ReefBeat app connection. Automatic pump shutoff additionally needs a ReefControl Power outlet unit. This detector cannot alert on its own — it has no built-in alarm, screen or Wi-Fi of its own.
Suitable for, and not suitable for
Suitable for any marine or reef system already running, or being built around, a Red Sea ReefControl Lite or Pro controller — sumps, cabinets, under-tank plumbing, ATO reservoirs.
Not suitable as a standalone leak alarm, and not suitable if you don't run ReefControl — there is no dedicated app or receiver for this sensor outside that ecosystem.
Care and maintenance
No routine servicing. After the sensor triggers, dry the contacts and the surrounding area; the alert clears once the contacts are dry and it's ready to detect the next leak straight away.
Goes well with
- ReefControl Lite or Pro — required host controller for this sensor.
- ReefControl Power — lets the detector cut a pump automatically instead of only alerting.
- ReefSense Magnetic 4-Probe Holder — if you're adding probes alongside the leak detector, this keeps them tidy at the same mounting point.
Warranty and delivery
Covered by Red Sea's 24-month warranty, in addition to your rights under Australian Consumer Law. Small, lightweight item — standard parcel delivery.
Common questions
Does this work without a ReefControl controller?
No. The ReefSense Leak Detector only communicates through a ReefControl Lite or Pro controller's ReefSense port — it has no independent alarm or connectivity.
Can it turn a pump off by itself?
Only if it's paired with a ReefControl Power outlet unit. On its own it sends an alert through ReefBeat; the automated shutoff needs the Power unit in the loop.
Do I need to replace the sensor after it's triggered?
No. Wipe the contacts dry and it's ready to detect the next leak — Red Sea builds it with no wear parts to replace.
Where should I place it?
Anywhere water collects first if something goes wrong: under the sump, behind the display cabinet, or directly below plumbing joins and unions.
