

ReefSense – Salinity & Temperature Probe – Red Sea
200,00 €
Available on backorder - Delivery expected 7-15 days from order.
Available on backorder - Delivery expected 7-15 days from order.
Payment Methods:
Description
What Is the ReefSense Salinity & Temperature Probe?
The ReefSense Salinity & Temperature Probe by Red Sea is a digital 2-in-1 sensor designed for reef aquariums. It measures both salinity (via conductivity) and temperature in real-time, supplying that data to Red Sea’s ReefControl system (Lite or Pro) and the ReefBeat app.
As part of the ReefSense ecosystem, it’s built for stability, accuracy, and automation in demanding saltwater environments.
Specifications of ReefSense Salinity & Temperature Probe
4-Pole Conductivity Sensor
Uses a bespoke 4-pole conductivity design, which improves accuracy and stability in high-ion, harsh reef water.
This helps reduce common issues like signal drift or interference in typical reef setups.
Temperature Compensation
The salinity measurement is automatically temperature-compensated. That means as temperature changes, the probe corrects the conductivity reading to give a truer salinity value.
This is critical because temperature strongly affects conductivity; without compensation, salinity readings would be less reliable.
Measurement Units & Accuracy
Salinity can be displayed in PSU (ppt), mS (millisiemens), or S.G. (specific gravity).
Salinity accuracy is stated as ±1%.
Temperature accuracy is ±0.05 °C.
Digital Design & Interference Immunity
Since the probe digitizes the signal internally (inside the probe), it’s less susceptible to electromagnetic interference (EMI) — a common problem in sumps with pumps, lights, etc.
The digital nature also means calibration data is stored on the probe itself, so you can move it between controllers / ports without having to re-calibrate.
Integration with ReefControl & ReefBeat
Connects to ReefControl Lite or Pro controllers via the ReefSense digital port.
Through the ReefBeat app, you can:
View real-time salinity and temperature data.
Log historical data (trends over time).
Set up alerts when salinity or temperature drift out of safe ranges.
Use readings to trigger automations: e.g., use salinity reading to run an ATO pump, or temperature reading to control a heater or fan.
Bluetooth / Remote Use
The probe supports Bluetooth (BLE) via the ReefBeat app for remote calibration and monitoring.
This is handy: you can remove the probe from your tank (for cleaning or calibration) and check readings / calibrate it from your mixing station or sink — without crawling to your sump.
Smart Calibration Memory
Calibration history is saved inside the probe.
This means once calibrated, you don’t need to recalibrate each time you switch controllers (as long as it’s the same probe).
Robust Build for Reef Use
Designed to handle the sometimes harsh chemical and ionic environment of saltwater aquariums.
Suitable for long-term deployment in aquarium sumps or other water compartments (as long as you keep it clean and avoid large air bubbles).

Why You’d Use ReefSense Salinity & Temperature Probe
Continuous Monitoring: Use it to constantly track salinity and temperature in your reef tank, rather than relying on manual checks (refractometers, hydrometers).
Safety & Alerts: Set up alerts in ReefBeat so if salinity starts drifting (due to evaporation or failed top-off), you’re notified immediately.
Automation: Integrate with a ReefControl Power unit to run automations:
For example, if salinity drops below a threshold → trigger an ATO pump to top up fresh water.
If temperature goes above or below a set range → turn on/off heater, chiller, or fan.
Data Logging & Trends: Track how salinity and temperature have changed over days/weeks. This helps diagnose issues (e.g., evaporation rate, heater/chiller reliability).
Remote Calibration / Maintenance: Take the probe out, calibrate via Bluetooth near your mixing station, then put it back — without losing calibration data.
Strengths of ReefSense Salinity & Temperature Probe
Very accurate and precise: ±1% salinity, ±0.05 °C temperature.
Digital design reduces noise from EMI, improving reliability.
Temperature-compensated salinity ensures readings are meaningful under changing thermal conditions.
Calibration memory means less hassle when moving or replacing controllers.
Bluetooth connectivity makes calibration and checks much more convenient.
Deep integration with ReefControl / ReefBeat — powerful automation and alerting.
Built for harsh reef water environments.
Considerations of ReefSense Salinity & Temperature Probe
Cost: Digital probes like this are more expensive than basic analog sensors or handheld testers.
Calibration Needed: To maintain accuracy, periodic calibration is necessary (using reference solutions).
Installation Position Matters: For best accuracy, the probe should be placed in a well-mixed area (avoid direct jets or very stagnant zones).
Drift Over Time: Like all conductivity sensors, performance can drift with fouling (salt deposition, biofilm), so cleaning is required.
Bluetooth Range: If your reef setup is large or your control cabinet is far from where you mix or calibrate, consider BLE range.
Dependency on Ecosystem: To fully leverage its capabilities (logging, automation), you need to be using ReefControl and the ReefBeat app.
Summary
The Red Sea ReefSense Salinity & Temperature Probe is a high-precision, digital 2-in-1 sensor made specifically for reef aquariums.
It gives real-time salinity and temperature readings, with temperature compensation, and supports multiple unit types (PSU, mS, S.G.).
When paired with ReefControl (Lite or Pro) and the ReefBeat app, it enables data logging, alerts, and smart automation.
Its internal calibration memory and Bluetooth connectivity make it flexible and user-friendly — particularly for serious reef keepers who want tighter control of their system.
Specification
Technical Specifications
| Shipping Package Weight (Est.) | 0,5 kg |
|---|
Customer Reviews
Only logged in customers who have purchased this product may leave a review.

Salt
Fish Food
Coral Nutrition
Water Conditioners & Bacteria
Trace Elements & Supplements
Fishes
Invertebrates
SPS Corals
LPS Corals
Soft Corals
Protein Skimmers
Fleece Filters
Internal & Canister Filters
HOB (Hang-on-Back) Filters
Sump Filters & Overflows
Reverse Osmosis – RO
Sterilizers
Filter Media
LED Lighting
LED Sump Lighting
Smart LED Lighting Control
Accesories & Components
Wave Makers & Powerheads
Return Pumps
Dosing Pumps
Air Pumps & Aeration
Accesories & Connecters
Algae Reactors
BioPellet Reactors
Calcium Reactors
Zeolite Reactors
Kalkwasser Reactors
CO2 Systems
Filtration Media
Filter Accesories
Chillers
Controllers
Fan Chillers
Heaters
Thermometers
Automation & Control
Auto Top-Off (ATO)
Water Tests
Live Rock
Rocks & Stones
Gravel & Substrate
Maintenance Accesories
Custom Aquariums
Waterbox Aquariums


Reviews
Clear filtersThere are no reviews yet.