Red Sea ReefSense 4-Port Expander

The Red Sea ReefSense 4-Port Expander grows your monitoring setup by adding four extra ReefSense ports to a ReefControl Pro, letting it accommodate up to seven ReefSense digital probes and sensors at once. Any ReefSense probe or sensor plugs into any open port, so you can keep adding parameters as your reef grows, all managed in the Red Sea ReefBeat app.

Why You’ll Love It

• Adds four ReefSense ports to expand your ReefControl Pro monitoring array.
• Run up to 7 probes and sensors on a single ReefControl Pro.
• Plug-and-play digital, connect any ReefSense probe or sensor to any port, no programming needed.
• Grows with your tank, add pH, salinity, ORP, temperature, leak detection, and more over time.
• Part of the Red Sea ReefControl and ReefBeat ecosystem for real-time monitoring, logs, and alerts.

Specifications

Complete Your Setup

• Requires a ReefControl Pro controller (also in the ReefControl Pro Deluxe Kit).
• Mount your probes with the Magnetic 4-Probe Holder or a Single Probe Holder.
• Add automation with the ReefControl ATO Module & Temp Sensor, or browse more reef gear.

FAQ

What does the expander do?
It adds four more ReefSense ports so a ReefControl Pro can run up to seven probes and sensors at once.

Which controller do I need?
The ReefControl Pro. It plugs into the ReefSense port to expand your total probe capacity.

Which probes work with it?
Any Red Sea ReefSense digital probe or sensor, including pH, Salinity, ORP, Temperature, Leak Detector, and ATO.