






Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.
Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.
💼 Elevate your grow game with precision humidity control that means business.
The MEISAIL Humidity Controller is a high-precision device designed for professional greenhouse and grow tent environments, featuring a Swiss sensor with ±2% accuracy, a large dual blue screen display for easy monitoring, and the ability to control humidifying and dehumidifying equipment up to 1100W. Its smart delay function ensures equipment longevity, making it an essential tool for maintaining optimal humidity levels effortlessly.





| ASIN | B0D2WW9ZN8 |
| Best Sellers Rank | #217,009 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #340 in Temperature Controllers |
| Brand | MEISAIL |
| Brand Name | MEISAIL |
| Color | Black |
| Customer Reviews | 4.4 out of 5 stars 113 Reviews |
| Display Type | LCD |
| Item Type Name | Humidity controller |
| Item Weight | 0.48 Kilograms |
| Manufacturer | MEISAIL |
| Model | HD-Black-2 |
| Number of Items | 5 |
| Part Number | HD-Black-2 |
O**O
greenhouse humidity controller
This Meisail humidistat has worked very well for me in my shiitake mushroom greenhouse. It accurately detects ambient humidity and turns on the misting system exactly when I need it. It's easy to set up: just adjust the minimum and maximum humidity levels, and the unit does the rest. The display is clear and the buttons are responsive. It also has a delay function to prevent the system from turning on and off constantly, which helps extend the life of the connected equipment. Excellent option if you need to maintain controlled humidity automatically and without too much hassle. I RECOMMEND IT
N**A
Pretty reliable, simple
This humidity controller works exactly as described. I use it in a walk-in grow tent with multiple high-maintenance plants, and it’s made a big difference. Super easy to set up—just plug it in, set your desired humidity range, and it takes care of the rest. It reacts quickly and keeps the environment stable. The display is clear, and the controls are straightforward. Great choice if you need consistent humidity control in a larger setup.
A**M
Great Product!
The accuracy and Temperature control is amazing, this product is very reliable and works very well! I would highly recommend to others.
A**R
Surprised by the build quality
This controller is built sturdy and is very accurate. The humidity reading matches multiple other hygrometer in my tent. The probe wire is also decent length.
B**1
Sensor reads in accurately at 0%, thus constantly running
Overall, I find this product to be fairly easy to use. The user interface is simple and intuitive, which makes setup and operation straightforward. However, I’ve repeatedly encountered issues with the sensor. Despite setting the humidity threshold at 90%, the sensor often fails to work properly. After just a few hours, it will read zero humidity—even though there is no visible moisture on or around the sensor that would justify a false reading. To reset it, I constantly have to remove the sensor and let it sit in ambient air, which defeats the purpose of having an automated system. In short, while the product design is promising, the unreliable sensor makes it more hands-on than it should be.
J**N
Works perfectly
Save your money over buying the more expensive ones as I have found that this one works perfectly and is easy to calibrate. The price as well as the other reviews had me leaning towards this one and I’m glad I got it.
A**.
Great
I’ve used this for a week and so far so good. Easy to set up and install which is great considering I’ve had ones in the past that weren’t that easy. It has a large display so it’s easy to see where all your levels are at. I believe it’s accurate as I used a different brand in the same environment and they’re both readying the same. So far so happy with this product and it doesn’t break the bank.
K**C
Works but Bright Blue Light
Using this with my Vicks warm mist humidifier. So far it is working well. This is saving me from having to refill the humidifier multiple times at night and throughout the day. It’s also saving me on electricity, not running my old school humidifier 24/7. Taking a star off for a couple things. 1) directions are confusing. Need a little intuition and common sense/deductive skills to figure out. But once you do, it’s easy to use and control temperature/humidity. 2) the digital display is really bright and blue. No one wants a blue light glowing while trying to sleep. I sleep with an eye mask but for humans and pets that don’t, it may be nuisance. 3) would be nice to have an off button. But can easily unplug. Doesn’t make any noise which is a plus. A little pricey compared to others out there but so far quality seems to be good. Came packaged well.
Trustpilot
1 day ago
1 month ago