Red Sea Reefer ATO Upgrade Kit (No Corner Bracket )
Wattage
10 W
Flow rate
300 L/h
Water type
Marine
Red Sea Reefer ATO Upgrade Kit (No Corner Bracket )
Red Sea's 3-in-1 ReefATO+ system, supplied without the corner mounting bracket. This upgrade kit brings automatic top-off, conductivity-based salinity monitoring and a built-in leak detector to a Reefer aquarium in one Smart Hardware unit, run from Red Sea's ReefBeat app. This listing is the version without the magnetic corner bracket — the right choice if you already have one fitted from an earlier Red Sea kit or a compatible mounting point in your sump.
Key features
- 3-in-1 sensing — one probe assembly measures water level for top-off, electrical conductivity for salinity, and doubles as a leak detector, all on titanium probes rated for reef water.
- Built-in digital thermometer — accurate to ±0.1°C, so you get a live temperature reading alongside level and salinity.
- Variable-flow 12 V DC pump — 6–10 W, up to 300 L/h with a 2.5 m maximum head, so it can reach a top-off reservoir that isn't sitting right beside the sump.
- ReefBeat app control — the Smart Controller connects to Red Sea's app for monitoring and alerts, rather than a standalone dial-and-button unit.
- Solid-state conductivity sensing — no float switch to stick or foul with coralline growth.
What's included
- Water-level and conductivity sensor with titanium probes
- Built-in digital thermometer
- Titanium-probe leak detector
- 12 V DC variable-flow ATO pump — 6–10 W, up to 300 L/h, 2.5 m maximum head
- Smart Controller with ReefBeat app connectivity
- 3 m of silicone tubing, tube holder/clips and a siphon breaker
What you'll still need
- A corner mounting bracket — this kit is supplied without one. If you don't already have a Red Sea bracket fitted, add one to your order to mount the sensor at the sump corner.
- A top-off reservoir — the kit has no dedicated tank of its own. The pump is sized to sit inside your existing reservoir, jerrycan or the Reefer cabinet's built-in top-off compartment.
- RO/DI top-off water — top off with RO/DI only. Topping off with saltwater raises salinity over time, because salt doesn't evaporate with the water.
Specifications
| Attribute | Detail |
|---|---|
| Sensing | Water level, conductivity (salinity), leak detection, temperature |
| Probe material | Titanium |
| Thermometer accuracy | ±0.1°C |
| Pump voltage / power | 12 V DC, 6–10 W |
| Pump flow | Variable, up to 300 L/h |
| Maximum head | 2.5 m |
| Control | Smart Controller, ReefBeat app |
| Tubing supplied | 3 m silicone, 5 mm internal diameter |
| Corner bracket | Not included in this listing |
Suitable for, and not suitable for
- Suitable for: existing Red Sea Reefer owners adding or replacing ATO functionality, and anyone who already has a Red Sea corner bracket fitted.
- Not suitable for: a first-time buyer who also needs the bracket — check what you have before ordering this version, or ask us to add a bracket to your order.
Setting up
The sensor mounts at a sump corner on the bracket, the pump sits in your reservoir, and the 3 m tubing runs from pump to top-off point. The Smart Controller pairs with the ReefBeat app for monitoring and alerts, and — on compatible Red Sea controllers — integration with the rest of a ReefBeat system.
Warranty and delivery
Covered by Red Sea's manufacturer warranty against defects, in addition to your rights under Australian Consumer Law. Standard parcel delivery Australia-wide.
Common questions
Do I need the corner bracket separately?
If you don't already have one fitted from a previous Red Sea kit, yes — this listing doesn't include it. Ask us before ordering and we can add the bracket to your order.
Does it come with its own reservoir?
No. The pump is designed to sit in an existing top-off reservoir, jerrycan or your Reefer cabinet's built-in top-off compartment.
What water should I use to top off?
RO/DI water only. Topping off with saltwater will raise your tank's salinity over time, because salt is left behind when water evaporates.
Will this work with any Reefer system?
It's designed as an upgrade for Red Sea Reefer aquariums generally. If you're not sure it will mount cleanly on your specific model and generation, ask us before ordering.
