Having this and a good humidifier and de-humidifier are an absolute key to consistently high-yielding grows. Get one, it’s worth it.

If you are dealing with a situation with high humidity, this unit will without fail alarm and turn off your dehumidifier / fan, making it mostly useless. You cannot set the unit to not alarm, so you will have to listen to it blearing, knowing that you now have to manually have to get power to your dehumidifier / fan. You can set the calibration down by a max of -10%, and then set your dehumidify set point down a corresponding -10%, but amazingly it will STILL alarm at high humidity and shut off your dehumidifier / fan. Amazingly disappointing.

Despite the odd brand name and surprisingly low price, this thing is excellent. If youre not a techie you might find the settings menu bewildering. I have HVAC background so cryptic menus like this are old hat. Accurate remote humidity sensor. Makes a slight but noticeable whine like in its power supply. Power cord is pretty thin so its a bit worrisome plugging in a high-current device.

This works great. I don’t know why it ask temp control and a review but it does what it’s supposed to do. That’s all we ask. Thank you to the designers of this product. It does what it is designed to do.

Works great for tanks!!!

great product, a bit hard to setup all the features, but once you do it is fantastic.

Keeps the tent right where I need it. I have two of them, and they just work.

Ive been using this to control an evaporative cooler that Im using to humidify a room. There have been no problems for more than a year and it is still accurate, within a few points when compared with readings from a psychrometer. So for, it seems to be much more reliable than several of their thermostats that failed within a few months.

Does not work the best to measure humidity unless calibrated somewhat often & for sure not as user-friendly as advertised. It helps to watch youtube videos and third-party materials to figure out usage.

I use this to control the humidifier in my grow tent. It works perfectly for that application. You just need to make sure the sensor (hygrometer) is in the right spot. (and theres water in the humidifier, of course)