My dehumidifier stopped reading the proper humidity and would never turn off. Instead of getting a new dehuey I got one of these and set it up to the range I wanted, and it works even better than before and Im now saving a little on my electric bill as its no longer running 24/7. Im not the smartest of men so I didnt fully understand all the settings but after toying around with it, I cant imagine not having it. Even if I have to get a new dehumidifier someday Ill probably still connect it to this thing.

Excellant - Works as advertised. Im using it to control my humidifier in a 10x30 room. Works Great.

Very dependable, easy to navigate and goes what it is supposed to do A+

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

Hygrometer might be off would have given it 5 stars otherwise but when I compared it to 4 other hygrometers it was off by at least 5% minimum in some cases higher while 3 of my hygrometers were within 3% tolerance of each other constantly sooo idk however you can calibrate it so all good

I love this for my mycology tent

This humidity controller is OK when it functions as intended. Programming is relatively easy and it seems consistent. However after a few weeks I started getting an ER- code. The device emits a loud tone when this happens and ceases to function. After inspecting the device I found nothing amiss with the setup. After an hour or so the unit clicked back on and resumed normal function. This pattern continued and increased in regularity resulting in semi-regular humidity dips and as a result the plants suffered greatly. This behavior became more and more regular as use of the device continued. Eventually the ER- would not clear and the device was removed from use. Upon further inspection and disassembly of the sensor whip it appears as though one of the leads was not seated all of the way into the connector, resulting a short and the ER code. After reseating the lead the device was tested and functioned per normal. That sensor whip contains a strain reduction loop which the sensor cable wraps around prior to reaching the sensor. While this is a nice feature... it results in the leads being almost taught within the sensor enclosure and likely was the root of the failure I experienced.

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.

You can make it work as long as you want to maintain a very narrow humidity range. For instance, when the humidity is maintained at 50% +/- 5%, you can get the device to read fairly accurately by using the calibration function and adjusting for the difference between actual humidity and the humidity that the probe detects. But when you want to maintain a humidity of 65% +/- 5%, you have to go through the calibration process again because the probe is not linier. It is way off. I will contact the company and update this review later. Ive had this device for about a week now and I contacted Amazon for assistance. A day later I received an email from the manufacturer asking for details about the lack of accuracy and linearity. They gave me instructions that allowed me to clear the internal settings and then reload the settings, by pressing the buttons in a special sequence while unplugging the device. It worked wonders and the device is working fine. Great support from the manufacturer and Amazon.

Easy to set up. Had to make sure the humidifier is not touch control, because if the controller switches it off, you have to make sure the humidifier automatically switches back on. Sounds obvious, but those touch control off/on humidifiers wont work well with this type of controller.