A CLOSER LOOKHome & Garden
Let heat switch the fan on.
AC Infinity Controller 1
Preset temperature trigger for USB fans
Buyer feedback ↓Controller 1 adds a simple temperature trigger to compatible AC Infinity USB fans. A wired probe measures the chosen spot, while the front button selects one of four preset temperatures.
- 84–96°FFour trigger presets84, 88, 92 or 96°F
- 6 ftProbe leadPlace the sensor away from the control body≈ 6.5 Letter-sheet lengths
- USBFan controlPower supply sold separately
Amazon US · Preset temperature trigger for USB fans · Retailer link
THE QUICK TAKE
Is it right for you?
Choose it when you want a fan to start at a preset temperature without configuring an app. The separate probe lets you measure the warm area while keeping the control where you can reach it. Manual on and off modes are also available.
Skip it if you need humidity control or an arbitrary temperature setpoint. It offers four fixed heat triggers, not a full programmable thermostat. The probe and the control body have different exposure limits; keep the control and power connections dry.
01 / BUYING NOTES
Before you buy.
Four choices, clearly marked.
Press the button to choose 84, 88, 92 or 96°F, or use the manual modes. Make sure one of those thresholds matches the job before choosing this controller.
Measure the right spot.
Place the separate probe where temperature matters, rather than beside a heat-producing adapter. Route its lead so the door does not pinch it.
Plan the whole power chain.
The controller sits between USB power and a compatible fan. A wall adapter is not included; match the power source and connected fan load to AC Infinity’s instructions.
Controller 1 specifications ↗ · MULTIFAN connection instructions ↗ · Exact controller package ↗
02 / AMAZON REVIEWS
The buyers’ view.
Owners using the controller with cabinet fans describe straightforward installation and automatic switching as equipment warms and cools. One appreciates that it avoids constant on-off cycling near the trigger temperature, while another finds the thermostat slow to respond and reports that fan shutoff follows a noticeable temperature drop.
What buyers like
- quality99
- ease of installation51
- temperature control38
- fan control37
- Value for money33
- functionality26
- cooling performance24
- build quality14
The small numbers are review mentions. Topics and sentiment are from Amazon’s customer-review overview.
Amazon US · Checked . Ratings may include other colors and sizes.
View source ↗03 / SOURCES
What the sources say.
The controller uses a wired thermal probe and four fixed trigger temperatures. It adds automatic heat response to compatible USB fans but does not measure humidity.
The guide explains how chained fans share the first control and how the power arrangement limits the connected fan count. Check the complete fan chain, not just the available USB socket.
04 / COMPARE
Different priorities.
Choose the tradeoff that fits how you will use it.
Swipe to see every alternative →
THIS GUIDEAC Infinity Controller 1USB thermal trigger |  ALTERNATIVEINKBIRD ITC-308US temperature controller |  ALTERNATIVEINKBIRD IHC-200US humidity controller | |
|---|---|---|---|
| Amazon price | $19.99 | $35.99 | $42.99 |
| Best for | Preset heat-triggered USB fans | Temperature switching of AC appliances | Humidity switching of AC appliances |
| Design | Probe and four fixed presets | Heating and cooling outlets | Humidify and dehumidify outlets |
| Use | Keep control and connections dry | Check appliance startup and load | Keep control and outlets dry |
| Consider | No humidity measurement | A different power system | Does not control temperature |
| Explore | Read buying guide →Amazon source ↗ | Read buying guide →Amazon source ↗ | Read buying guide →Amazon source ↗ |
About these everyday comparisons
Approximate comparisons to familiar objects: a bank card’s 3.37-inch long edge, a Letter sheet’s 11-inch long edge, or a US nickel’s 21.21 mm diameter / 5 g weight. Water comparisons exclude the container’s weight. Capacity comparisons describe volume, not exterior size or how food fits. Reference pictures identify the object; use the labeled ratio for the comparison.
05 / PRICE HISTORY
The price over time.
AC Infinity Controller 1 · Preset temperature trigger for USB fans · Amazon US
The chart legend identifies Amazon and new-offer prices when available. New offers can include marketplace sellers. Coupons, shipping and size/color selections can change the final price. Blank periods are missing observations, not a zero price.
06 / RELATED FINDS
A few useful extras.
For the way you plan to use it.
Add a compatible fan
AC Infinity MULTIFAN S3
The MULTIFAN S3 supplies a guarded fan for the thermal controller to switch.
Supply wall power
AC Infinity Turbo Fan Adapter
The Turbo Adapter is the AC Infinity power accessory for approved MULTIFAN setups. Follow the controller connection guide.