No real complaints, some of the abbreviations in the LED display could be clearer, I have to look up till I memorize but otherwise does the job. I have to say the sensor is very responsive, as soon as I open the door to the terrarium it immediately sense is a change in humidity and activates the humidifier connected to it

For the price, you can’t beat this. My only gripe is how slow the probe is to detect a change in humidity. I use this in a 5x5x6 tent, and the probe is so slow that my small humidifier overshoots every single time by 10 or more percent. For such a large area, my humidifier is not fast to get it to the correct RH. Not a big deal for my use, just something to think about if you have strict RH requirements. I do love the variety of settings and all of the control built in even if I only use one setting :) I gave it four stars just because the accuracy doesn’t seem to be the best, but I wouldn’t hesitate to buy another if I needed to.

After a couple months I get “ERR” on the screen. It’s probably something that I did so idk

Iworked well for about 3 months in an 80% humidity enviroment. It then began giving eratic measurements or sticking on a false temp untill i jiggled probe wire. Which was not ideal when counting on humidity kicking back on when away. It barely worked when i stored it away 5 months. I just gotit back out to use it and it gave me the error screen after 1 day. Kind of dissapointed. I was thinking if i treated it well it would do job for long time with maybe needing to replace sensor once a year. I guess the relay stopss working after repeated on offs. I hope im still under warranty period but im unsure of length .

My wife runs 3 egg hatchers and our Inkbird controller makes environmental control for these a breeze. This unit is very easy to program, very accurate and dependable. The alarm system that notifies us when the humidity is outside our set parameters relieves from having to check the hatchers multiple times a day. We use a baby monitor placed near the controller with the receiver in the house, works great to notify us of any issues. After nearly a year of use, one of our controllers stopped functioning. I contacted Inkbird, they responded quickly and sent us a replacement within a couple of days. THANK YOU INKBIRD!!

Would be 5 stars if it did not present the “Err” issue the first2 weeks of use. Fortunately an amazing buyer here (thank you) found out that it is the prone being a little bit loose. Once I removed the cap and shakes the sensor and tighten it up, I never had this issue again in 2 months and counting.

I needed a way to control the humidity in my 3 x 3 grow tent. I bought this on March 14, and it works great for both humidification/dehumidification so far. You need to make sure that whatever devices you plug into it have on/off switches and not buttons: the unit powers whichever designated outlet is required to obtain the humidity set point. Only a device with a switch in the “on” position will turn back on when the outlet is energized. I was able to understand the directions, and I feel the humidity readings are pretty accurate. I order a lot on Amazon, and I’m very pleased with this purchase. If it holds up to the test of time, then it will definitely earn the 5 stars.

There are two ways to control humidity and this device controls both. I used it to turn humidifiers on when the humidity dropped too low. This unit can also turn on ventilation when humidity gets too high. (But I didnt use that feature.) Makes humidity control easy!

I bought this controller to use with a Honeywell wicking humidifier. My application is to maintain the humidity of a room where I keep my acoustic guitars. The target humidity range for guitars is pretty narrow (40-50%) and the humidity control on my Honeywell humidifier is not calibrated. This controller is really great, easy to use, and adds precision to an otherwise vague humidifier. In fact, you can also connect a dehumidifier to the other outlet and have even more control over your environment. I can now keep my guitars out of their cases on a stand, and the guitars all sound amazing now (with stable action and proper crowing of the soundboard).

I bought this device used it for about a year and the humidity sensor went bad. I reached out and they sent me a replacement sensor no questions. Talk about above and beyond! This device has been so useful in my mushroom growing. I used to run everything on timers and this made life so much easier. I’m a customer for life.