Red Sea ReefSense Salinity & Temperature — Digital Reef Probe with 24-Month Warranty

The Red Sea ReefSense Salinity & Temperature probe continuously measures the two parameters that weigh most on a reef tank's stability, plugged into a ReefControl controller. It is the most durable probe in the lineup: Red Sea's full 24-month warranty, no routine recalibration — only after cleaning — and the calibration solution is included. Salinity drift is one of the leading causes of losses in reef keeping: it is the parameter to watch first after temperature.

What makes ReefSense probes different

Per Red Sea's official manuals, every ReefSense probe is digital and stores its calibration in onboard memory: it plugs into any port of a ReefControl Lite or Pro, moves between controllers without recalibrating, and calibrates remotely over Bluetooth — you bring the probe to the sink, not the controller to the tank. Readings display continuously in ReefBeat, with alerts the moment a parameter drifts out of range.

Warranty and maintenance — the toughest in the lineup

Unlike the pH and ORP probes (wear items with a 6-month warranty), the salinity probe carries Red Sea's full 24-month warranty and needs no periodic recalibration. An occasional cleaning is all — and after a cleaning, you recalibrate with the included solution. One installation tip: Red Sea flags snails climbing on the sensor as the number one cause of skewed salinity readings — the manufacturer offers a snail guard (part R35853) that we can order on request.

Frequently asked questions

Does the salinity probe work on its own?

No — it is a sensor for the ReefControl Lite and Pro controllers. It takes one ReefSense port and its readings display in ReefBeat.

Why does it cost more than the pH or ORP probe?

Because it lasts: 24-month warranty versus 6, no routine recalibration versus monthly (pH), and the calibration solution is included. Over its lifespan, it is the best value of the measuring probes.

My salinity reading looks wrong — is the probe defective?

Check the sensor first: per Red Sea, a snail or deposit on the measuring cell is the most common cause of a skewed reading. Clean, recalibrate with the included solution, and protect the sensor.

Does it transfer to another controller?

Yes. Calibration lives in the probe, not the controller: it follows your system if you move from the Lite to the Pro.

Why buy from ReefSolution

ReefSolution is an authorized Red Sea dealer in Canada — no customs or exchange surprises. The probe plugs into the ReefControl Lite or Pro — and it already comes in the Pro DLX Kit. Shipping across Canada and expert advice in-store in Laval.