AC InfinityController 1, Thermal Trigger for AIRPLATE, MULTIFAN, USB Fans and Devices. Computer, AV Cabinet, Home Theater Cooling.

Thermal trigger worked perfectly for my application, controlling two 1W USB fans to cool a mini PC inside a wooden cabinet that was getting hot. Initially I thought the trigger was faulty because after cycling once it would power off and remain off. BUT I put a meter on it and found that my cheap USB power supply voltage was dropping to ~2v when the load cycled on, so the trigger would power down. I upgraded my power supply and the thermal trigger now works exactly as described. AC Infinity's tech support was responsive and helpful.

This is a great thermal temperature control trigger unit it's very efficient and accurate as per the temperature settings You set. It's also very small tiny it's approximately "1" W X 2 1/2 inches long much smaller than the specs provided here on the product page information. This little unit does a great job controlling my AC infinity fan that I'm using to keep a Wall plug power distributor that I have plugged into a surge protector cool from overheating. I use the digital version for my other AC infinity fans that are keeping my Denon AVR unit cool. Both of these thermal temperature control units do a fantastic job controlling the fans by the selected temperature settings it's a great investment to keep your expensive electronics cool.If you're debating about purchasing this product or any product from AC Infinity please be assured that they have very fine reliable products that are worth the money you pay for them, they're all of great build quality that's made to last. I highly recommend this thermal temperature control unit 100%.

Some background - I've been using AC Infinity products for 5 years (as of April 2024). They're great because the build great products that excel for the market they're intended to be used for. While the price is higher than their competitors, it is worth it.I purchased this temperature sensor for a niche purpose. I have a La-Z-Boy double recliner with a built-in armrest storage unit w/ AC outlets inside. It also has dual trays which are perfect for laptops. But I feared putting a 250 watt gaming laptop power supply in the storage unit due to the heat that it makes.To combat the heat, I purchased The AC Infinity Controller 1, and connected it to a set of dual 40mm fans. I also modified the back of the storage unit to accommodate the fans and am exhausting the air out of the back of the storage unit, instead of blowing air into it. This design is cool and efficient, and the Controller handles turning the fans on and off as desired. I also appreciate they programmed hysteresis into the controller so it doesn't constantly turn on and off at the target temperature. I don't have the # in front of me but I want to say it's 2-3 degrees F below the selected temperature.I'm incredibly happy with its design. It has worked as desired for about 2 months now, and I anticipate it will continue to do so for the foreseeable future.

My AV receiver is located on the top shelf of a wooden built-in media cabinet. I have no doors on the cabinet, and any heat emanating from my AV equipment must vent through the front. My receiver sits on the top shelf and has about 4 inches of clearance above the cooling vents. However, heat used to get trapped between the top of the receiver and the top of the cabinet. Not anymore though! I placed a AC Infinity MULTIFAN S2 on top of the receiver vent and it blows all heat out the front of the cabinet. What I like about this fan is (i) it is well made, (ii) it has insulated rubber feet to isolate itself acoustically from the receiver, (iii) it has three fan speeds, (iv) its a blower configuration that blows the air forward vs. upwards, and best of all (v) it is very quiet. In the "Low" setting - which is sufficient for my needs - the fan's noise level is barely a whisper and cannot be heard across the room when all music is off. The fan is powered by USB or optional AC adapter. To mine I added a compatible thermal switch (the AC INFINITY CONTROLLER 1, Thermal Trigger) that activates the fan only when heat build-up exceeds a set point set by me. Once the receiver cools down after turning it off, the thermal switch turns the fan off via a small sensor placed on top of the cooling vents. The fan and thermal switch are connected by USB, and installation is straightforward and very easy. I highly recommend the fan, AC adapter, and thermal switch - the link for the fan follows:https://www.amazon.com/gp/product/B012CL2V3I/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1

I have purchased this multiple times because it is very simple to use. One button push configuration to determine one of 3 temperature settings with the 4th setting being on. I have not gone as far as checking the air temperature near the thermometer but it seems to work based simply on ambient temperature in the room where I have the device set-up. Of the three I have in use, they are still working and the oldest one is more than three years old in a home build electronics cabinet managing 4 fans. The second one is in a custom battery / solar generator managing a single fan and the third is mounted in a large solar generator managing 2 fans. I have had zero electronics failures.

I purchased both the AC Infinity Controller 1 and 2. I prefer the Controller 2, because it shows the temperature on a small display. However, if you just need to control the temperature, and don't need the display, then this is a great solution. It's inexpensive, and very effective. It's also powered via USB, so you don't even need an AC adapter. I would highly recommend this product.

I have a couple sets of fans, one set for my receiver and another for my Xbox. Both in a cabinet so air flow is important. These just work - plug the controller into power, plug a fan into this (or fans in parallel), set the temp you want, and put the probe where you care about. Allows powering these from the wall but only running the fans when the devices are actually on. Great stuff.