ReefSense Temperature Probe
Water type
Marine + Reef
Fits
Red Sea ReefControl Lite, Red Sea ReefControl Pro, Red Sea ReefControl Pro DLX Kit
Warranty
2 years
ReefSense Temperature Probe
The one ReefSense probe that never needs calibrating. The Red Sea ReefSense Temperature Probe plugs into any port on a ReefControl Lite or Pro and gives a continuous, ±0.1°C-accurate temperature reading in the ReefBeat app, with an alert the moment it drifts. Because temperature does not need a reference solution to check against, this is the only probe in the ReefSense range with zero routine maintenance.
It is sold on its own for anyone adding a second temperature point — a sump alongside a display, for example — or replacing a probe that has failed or been damaged.
Key features
- ±0.1°C accuracy — fine enough to catch a heater sticking on or a chiller dropping out before it becomes a problem.
- Titanium tip — corrosion-resistant in saltwater, and fully digital inside the probe body so the signal resists electromagnetic noise from nearby pumps and lights.
- Never needs calibrating — the only probe in the ReefSense range with no reference-solution routine.
- Moves between controllers — plugs into any port on a ReefControl Lite or Pro, not a dedicated slot.
- Drives automation, not just a readout — paired with ReefControl Power, it can shut off a heater or chiller automatically if the reading runs away.
What's included
One ReefSense Temperature Probe with cable. A ReefControl Lite or Pro controller and a probe holder are required and sold separately if you do not already own them.
Specifications
| Store SKU | BA9030 |
|---|---|
| Manufacturer part number | R35825 (ReefSense Temperature Probe) |
| Measures | Temperature |
| Accuracy | ±0.1°C |
| Sensor tip | Titanium |
| Calibration | Not required |
| Connection | Digital ReefSense port (ReefControl Lite / Pro), or USB-C for standalone Bluetooth use |
| App | ReefBeat — continuous logging and drift alerts |
| Water type | Marine / reef |
Will it fit my system?
It plugs into any port on a Red Sea ReefControl Lite or ReefControl Pro, including a port added by the ReefSense 4-Port Expander on a Pro. Away from a controller, it can also run on Bluetooth through the ReefBeat app using the ReefSense USB Power Connector for power — useful for a spot check, though Red Sea does not log readings taken that way.
Which ReefSense probe do I need?
| Probe | Measures | Calibration |
|---|---|---|
| Temperature | Temperature only | Not required |
| pH & Temperature | pH and temperature | Required for pH |
| Salinity & Temperature | Salinity and temperature | Required for salinity |
| ORP | Redox potential | Required |
If temperature is the only parameter you want on a second port — a sump or a quarantine tank, say — the standalone Temperature probe is the cheapest and lowest-maintenance way to add it.
Suitable for, and not suitable for
Suitable for: ReefControl Lite or Pro owners adding a second temperature point, running redundant monitoring on a display tank, or replacing a faulty probe.
Not suitable for: pH, salinity or ORP monitoring — it reads temperature only. It also cannot run automation on its own; heater or chiller shutoff needs it paired with ReefControl Power.
Goes well with
- Red Sea ReefSense Single Probe Holder — mounts this probe at a fixed depth in a sump.
- Red Sea ReefControl Power 6 — lets the probe trigger automatic heater or chiller shutoff.
- Red Sea ReefSense USB Power Connector — powers the probe for standalone Bluetooth use away from a controller.
- Red Sea ReefSense 4-Port Expander — adds ports on a ReefControl Pro if all existing ones are in use.
Warranty and delivery
Red Sea's ReefSense probes carry a 24-month warranty, which applies in addition to your rights under the Australian Consumer Law and is not limited or excluded by it.
Ships as a standard small parcel.
Common questions
How accurate is the ReefSense Temperature Probe?
Red Sea rates it to ±0.1°C, with a titanium tip suited to saltwater and a fully digital design inside the probe body to resist electrical interference from nearby pumps and lights.
Do I need to calibrate it?
No. It is the only probe in the ReefSense range that needs no calibration routine — temperature does not require a reference solution the way pH, salinity or ORP do.
Can I use it without a ReefControl controller?
Yes, with the ReefSense USB Power Connector for power and Bluetooth through the ReefBeat app for a spot reading. Red Sea does not log or alert on readings taken this way — for continuous monitoring it needs to be plugged into a ReefControl Lite or Pro.
Will it shut off my heater automatically?
Only when paired with ReefControl Power. On its own the probe reads and alerts through the ReefBeat app; automated switching needs the Power unit in the loop.
Does it work in a freshwater tank?
Red Sea markets the ReefControl/ReefSense system for marine and reef aquariums specifically. A freshwater compatibility statement was not found, so it is not claimed here.
