WILLHI WH1436H 110V Digital Air Humidity Controller with LCD Display High Accuracy Humidity Sensor & 118'' Power Cable, Humidification Mode & Dehumidification Mode+1pc Extra Sensor

I use this device to regulate humidity in my mushroom grow tent. It has made my humidity control easy and consistent. I liked it so well that I bought a second unit for my second tent. Highly recommended.

Good

This humidity sensor/controller is pretty easy to set-up and program. However, I've only used it for 1 month and already one of the RH sensors doesn't work anymore...good thing it came with two sensors.

First time using a product like this, and was nervous about keeping my humidifier and temperature and everything correct in my Martha tent, but to turn out this was delightful and works perfect. I highly recommend this to anybody who wants to have hands off automatic once you set the settings working for you. Great product,

works as advertised even slightly water resistant as ive accidently got water on it while filling my fogger still works like a charm will buy again when i need one for my other tent

I am using this in an application in which humidity should be 95%+ and a fogger is connected to this device. Unfortunately, there is no way to turn off the high humidity alarm, and this device regularly reads 100% humidity.There are two humidity level alarms: AH and AL (presumably "Alarm High" and "Alarm Low") which cannot be disabled; they can only be set to ranges between 0 and 100. Since it is best to be at or above 95% for my application, this device would near constantly sound its alarm. The fogger being turned on at 94% would almost certainly result in enough fog added that the level will again reach 100% even after the fogger is turned off at 95%. There is no resolution to this problem.I have had to settle for keeping the settings lower, around 90%, to keep the level from going up above. Instead, my range is regularly 88-100 (the alarm still sounds and things must be adjusted regularly based on fresh air exchange and external humidity to try to prevent that). It's better than nothing, but I will look for another device to do this job or try to de-solder whatever speaker is connected inside the device.To the company which manufacturers this, if you care to address this issue, it seems simplest to make the AH setting have a range which goes to 101. Then it can be turned off. That would likely be less work than adding another option that controls the on/off for the AH setting.

we will use this to grow mushrooms

"One extra sensor packed: More convenience if needed to replace it" YES, you will need to use the extra controller and order a third. I have 3 controllers and have used the spare for all 3 when the original failed. Now I am having to replace the spares. :(

LOVE this user-friendly humidity controller! Just set it & walk away. Makes life a lot easier.

Set up in a cold room in a bar to control mould. Works with exhaust fan plugged into humiditySensor.set trigger level at + 75%.

Worked like a charm for the two months, and now as I'm a few days passed the warranty (bought 3 November 2020 and the support stop 5 February 2021), the controller won't stop even pass the humidity level. I have to shut it down for a few hours before it work okay and then the problem show up again. I use it to control the humidity in my house via a system I built, it's a huge problem as when I come back to home or wake up the morning in a fog apartment like if I was in a bar in the '90!

works, no issues.