very powerful and easy to mount. Not noisy at all and works really good.

I’m planning on implementing these fans in my small agricultural project setup configurations, in the near future. The fans are a good make, with a sturdy metal body to them. There is a temperature and humidity sensor piece that can tell the fans when to run, or not, which is convenient, since I’ll be working with sensitive seedlings. The fans would also work well in a lizard or other reptile aquarium setting, for other users.

The humidity trigger works as advertised, and it shows temperature, but you cannot do anything with it. The fans move a reasonable amount of air for their size, but they're a little on the loud size. You can turn the speed down to reduce noise and airflow, but they still make a bit of noise.

I'm using this dual-fan set for circulation in my small greenhouse, and it works great! The airflow helps prevent humidity buildup and keeps my plants happy. Setup was simple, and I love that the display shows real-time temperature and humidity. The automatic fan activation when humidity gets too high is a nice touch. It's quiet, efficient, and a great addition to my setup! I highly recommend.

These are must haves in custom enclosures and reptile hardscapes to help create much needed airflow for your animals. I keep frogs specifically but I have some that need high humidity and some that don't need much at all. This really help get more airflow when needed and provide a step closer to a rea life environment for my animals

So I picked up these fans with the intent to using them to make an in-window exhaust setup for one of our bathrooms and to provide an exhaust fan for my 3D printer enclosure. Unfortunately I misread the listing and though that there were 2 separate fans that could be used independently and not 2 fans but only 1 with the controls and another that had to be plugged into the main fan- so that one was on me. I also thought that you could set either a temperature or a humidity threshold for the fans to turn on- this one I'd looked more closely for, but still missed that it could only be set to turn on and off with a humidity value.Still, I was able to test the fans out and they still may work for the bathroom exhaust fan (we have an older house that doesn't have a vent fan in the bathroom and just a window that can be opened- and in the winter months that's not very practical to use as it just means even colder air coming into fog things up). The setting aren't too difficult to set and once set and putting the humidity sensor in a good spot (it has a suction cup on it which is nice) the fans turned on and off as expected. They're not really powerful fans- they do run off a USB plug after all- but they also move a decent amount of air so especially for their intended purpose they should work just fine. One thing that is a bit of a pity is that there isn't any kind of memory for the humidity setting, so if you unplug the fans you'll have to set the threshold for them to turn on again.

This definitely pushes some air, but unfortunately is very loud compared to some of the other fans I use.This has to be used at max airflow setting when using both fans, otherwise the drop in voltage across the line causes a super annoying whining sound from both fan motors when powering both.That being said, I don't think the noise bothers my beardie at all, and these fans work great at managing humidity within my 120 gallon tank. I keep one fan on the hot side to help push heat around the tank, and I put the other on the cool side to help manage humidity in the planted area.I personally think 30 dollars is a bit steep for what is being offered here.

This fan works pretty well at moving air and isn't too difficult to install and program. It's a little louder than I would prefer, but not disruptive at all. While it is easy to mount and program, it can be a bit difficult to attach when the sensors are plugged in, but that won't be an issue if the default included clamps work for your setup (they did not for mine). They also feel a bit cheaply made, but it isn't so bad that I think they will fall apart. Otherwise, it works as expected and does a great job ventilating like it's supposed to. I wouldn't hesitate to recommend this for any reptile keeper with a sensitive animals that requires gokd airflow like a bearded dragon or chameleon.