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AC Infinity Controller Sensor Probe
The AC Infinity Controller Sensor Probe is a 6.09 m (20 ft) corded climate sensor designed for use with AC Infinity universal controllers and T-Series fan controllers, providing precise temperature and humidity monitoring for grow rooms, grow tents, HVAC ductwork, tool sheds, and AV component closets. It serves as both a factory-length replacement for a damaged or worn original probe and as an upgrade for setups that require greater reach than the 3.66 m (12 ft) probe included with most controllers.
The probe head is engineered from Swiss-made thermal-alloy using SAE grade-316 stainless steel, a material selected for its ability to adapt rapidly to changing climate conditions without drift or lag in readings. This ensures the controller receives accurate, up-to-the-minute data regardless of how quickly temperature or humidity shifts, critical in environments where conditions can change significantly between lights-on and lights-off periods. The IP44 rating protects the probe against splashing water and dust, maintaining reliable performance in the high-humidity conditions common in active grow environments.
Compatible with the Controller 69 Pro, Controller 69 Pro+, and T-Series universal controllers included with CLOUDLINE, AIRLIFT, AIRTITAN, AIRBLAZE, and CLOUDWAY series equipment, the probe connects via a standard 3.5 mm plug.
NOTE: that this probe is not compatible with the Controller AI+, which requires the separate AI Climate Sensor.

Temperature & Humidity
Swiss-made thermal-alloy head delivers rapid, precise climate readings.
IP44 Rated
Resists splashing water and dust in humid grow environments.
Universal Controller Fit
3.5 mm plug compatible with Controller 69 Pro, Pro+, and T-Series controllers.A 6.09 m (20 ft) Swiss-made thermal-alloy sensor probe for AC Infinity Controller 69 Pro, Controller 69 Pro+, and T-Series fan controllers.
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AC Infinity Controller Sensor Probe
Key Highlights
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Key Highlights
- Swiss-made thermal-alloy probe head with SAE grade-316 stainless steel for rapid, accurate climate response
- 6.09 m (20 ft) cord provides greater reach than the standard
- 3.66 m (12 ft) probe included with most controllers
- IP44 rated, resists splashing water and dust for reliable operation in humid grow environments
- Connects via standard 3.5 mm plug for straightforward installation
- Compatible with Controller 69 Pro, Controller 69 Pro+, and T-Series universal controllers
- Suitable for grow tents, HVAC ductwork, tool sheds, and AV component closets
- Not compatible with Controller AI+, requires the separate AI Climate Sensor
Directions for Use
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Directions for Use
- Ensure the controller is powered off before connecting or disconnecting the sensor probe.
- Insert the 3.5 mm plug into the sensor port on the back of your compatible controller.
- Route the probe cord to the desired monitoring location through a duct opening, tent port, or cable passthrough.
- Position the probe tip at canopy height, mid-room, or wherever accurate temperature and humidity monitoring is most critical.
- Secure the cord along its path using cable ties or clips to prevent accidental displacement of the probe tip during operation.
- Power on the controller, it will immediately begin reading temperature and humidity from the probe.
- If readings appear inaccurate after installation, allow 10–15 minutes for the probe to acclimatise to the ambient conditions before adjusting any calibration settings in the controller.
- Clean the probe tip periodically with a dry cloth to remove dust or residue build-up that may affect reading accuracy.
Technical Specifications
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Technical Specifications
- Product Model: AC-SPB20
- UPC Code: 819137021488
- Total Length: 6.09 m (20 ft)
- Plug Size: 3.5 mm
- Probe Material: SAE grade-316 stainless steel
- Probe Head: Swiss-made thermal-alloy
- IP Rating: IP44
- Measurements: Temperature and humidity (VPD calculated via controller)
- Compatible With: Controller 69 Pro (CTR69P), Controller 69 Pro+ (CTR69Q), T-Series universal controllers
- Not Compatible With: Controller AI+ (requires separate AI Climate Sensor)
Shipping & Returns
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Shipping & Returns
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at info@hydrooasis.com.au
If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at info@hydrooasis.com.au.
Size: 6.09 m