ReefATO+ Magnetic ATO Sensor Mounting Bracket
Keeps your ATO sensor exactly where it needs to be. This is Red Sea's genuine magnetic mounting bracket for the ReefATO+ level sensor, holding it at a fixed, repeatable height inside the sump so top-off switching stays consistent after every water change or sump clean. It suits any ReefATO+ owner replacing a lost, cracked or worn original bracket, or fitting a sensor into a sump for the first time.
Key features
- Magnetic mount — external magnet holds the internal sensor holder in place through glass up to 12mm thick, no drilling or adhesive.
- Repeatable positioning — the sensor returns to the same depth every time it's removed and reseated, which keeps top-off calibration consistent.
- Genuine Red Sea fit — sized to the ReefATO+ sensor housing, no adapter needed.
- Tidy installation — keeps the probe and its cable clear of pump intakes and sump baffles.
Specifications
| Type | Magnetic sensor mounting bracket |
|---|---|
| Maximum glass thickness | 12 mm |
| Fits | Red Sea ReefATO+ level sensor |
| SKU | BA8843 |
Suitable for, and not suitable for
Suitable for mounting the ReefATO+ sensor on glass sump walls or baffles up to 12mm thick. Not suitable on acrylic sumps unless the acrylic thickness and magnet strength have been confirmed to hold securely — check with us first if your sump isn't glass.
Care and maintenance
Wipe salt creep from both halves of the magnetic mount periodically — a heavy buildup weakens the magnetic hold and can let the sensor drift out of position.
Warranty and delivery
Covered by Red Sea's manufacturer warranty, which applies in addition to your consumer guarantee rights under Australian Consumer Law. Ships as a small parcel item.
Common questions
Does this fit acrylic sumps?
Red Sea rates the bracket to 12mm of glass. Acrylic has different magnetic coupling behaviour, so confirm with us before fitting it to an acrylic sump.
Can I reposition the sensor after it's mounted?
Yes — the external magnet slides freely along the glass, so you can adjust the sensor's depth to match your target top-off level.
Does the bracket come with the sensor?
No, this listing is the bracket only. The sensor is sold separately, and both ship together as standard in the full ReefATO+ kit.
Goes well with
- ReefATO+ ATO Sensor — the genuine sensor this bracket is designed to hold.
