

🌱 Grow with confidence—precision heat control that professionals trust!
The VIVOSUN Digital Heat Mat Thermostat Controller offers professional-grade temperature regulation from 40 to 108°F with 1000W power capacity. Designed for horticulturalists and reptile enthusiasts alike, it features a durable, rust-resistant build, easy 3-button operation, and convenient mounting options. Compatible with all heat mats and North American outlets, it ensures consistent, reliable temperature control for seedlings, germination, incubation, and fermentation.



















| ASIN | B015F4VFGI |
| Best Sellers Rank | #3,656 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #128 in Greenhouses & Plant Germination Equipment |
| Customer Reviews | 4.5 4.5 out of 5 stars (6,159) |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.06 pounds |
| Item model number | 330101 |
| Manufacturer | VIVOSUN |
| Operating Temperature | 40 Degrees Fahrenheit |
| Product Dimensions | 3.94 x 3.94 x 9.84 inches |
| UPC | 742920469641 |
V**R
Great Thermostat
I read some reviews saying the thermostat did not read true. I took a chance and bought one last month for my seedling heat mat then ran a test when I got it. I set it to 80 for my mat with a cup of water on it. Put the thermostat thingy in the water and waited testing every so often. The thermostat read consistently .2 higher than my instant thermometer so good there. It shut off at 80.2 and turned back on at 79.5 - perfect. I was happy so I bought the second one I needed and it tested the same. I am very happy with these
J**E
Good controller at a very good price.
Pretty impressed with the temperature control from this controller. Keeps accurate temperature within 1°F.
R**D
Great for gardeners.
Works fantastic for my seed starting mats, great for gardeners.
C**E
Not a permanent solution
I used it to keep my Kombucha at a constant temp. I purchased it November of 2018 and just threw it away this morning. It showed a power fault, I unplugged the heating mat and the fault remained. So now I need another one. Don't know if I will purchase the same thing again. Until it failed it worked beautifully. It held the set temperature to within half a degree, it brought the liquid up to temp within a reasonable time. the only thing I would found problematic was the suction cup holding the temperature probe to the container was easily dislodged. Seven months continuous service for sixteen dollars is not a bad deal, but I'm going to see if there is something out there a bit more durable.
A**O
Non-Functional display - Fixed by Seller
Received mine two days ago and promptly hooked it up only to discover that the LCD readout only functioned partially. As it stands I am unable to see the actual temperature readings or know for sure if I have set the correct temp on the unit as only parts of the number grids will display but not enough to know exactly what number you are setting. Aside from the bad display, the unit seems very basic to operate and the included instructions were sufficient. Like many others, I must have gotten a bad unit. EDIT 01/01/2017 I was contacted by the seller shortly after posting my original review and they offered to replace the defective unit for me. Upon receiving the replacement unit with expedited shipping, I am happy to say that the display is working perfectly and it appears to be maintaining the temperatures much better too. I'm very satisfied with how things were address and resolved.
J**Y
Plug-n-Play
Simple, easy to understand instructions for set-up.
H**Y
Works good
Bought this for my leopard gecko and it is working good, fluctuates slightly above and below my set temp but seems to maintain the temp fairly well. My gecko seems to like it so that’s all that matters! Good buy.
K**M
Wont turn on... And I paid extra for expedite one day shipping
I bought 3 of these Vivosun thermostats. 2 arrived in working condition but the third came right out of the box unable to turn on. First thinking it was my outlet, I tried many throughout the house. The red display wouldn’t even light up so I am not sure with the issue. I am extremely frustrated because I paid an extra $10+ shipping for “next day delivery”. I did receive the item but the item is defective. I needed this thermostat ASAP because my snake needs its heat lamp to be calibrated and its winter. Didn’t pay an extra 30 dollars for something that doesn’t work, not worried about the money, more frustrated at the fact that the product doesn’t even turn on, needless say function. Hoping the other two don’t die on me as well… -UPDATED 1/20/2019: Vivosun reached out to me and offered to send me a new thermostat in order to replace the one that didn't seem to work. Once received, I tested it out and it seems to work fine (Same as the other 2 I have). I appreciate quality products just as much as quality customer service so thankful for the team over at Vivosun. Will do business with them again in the future.
R**A
Todo al 100, recomendable y confiable.
M**T
This is the first time I have grown vegetables, especially from seed indoors. I have used the mat for about a month and a half now and it's been working great for my jalapeno and tomato seeds. Where I expected germination to occur in 2-3 weeks for my peppers, I saw results in about a week and a half. The controller for the mat is easy to understand and operate once you read the manual. I like that the thermometer probe comes with a suction cup so you can secure it to any humidity dome you are using. The probe seems to be accurate and reacts to changes in temperature quickly. I grow my seedlings in the basement where it's around 18C, but the mat keeps the soil toasty at 24C all day everyday no problem. I would buy the mat again if I needed to grow more seedlings in the future - for 20-25 dollars I think it is a good price.
D**S
Perfect addition for my snake’s terrarium, accurately measured temperatures with the probe and shuts off the mat as intended.
A**V
It works great. Giving 4 stars only because it came with a lot of scratches on the front where the display is and looks somewhat used. Other than that its perfect for my reptiles and keeps a steady temperature. Will order again for my other terrariums
J**T
I have a 76-cell seed starting dome and a warming mat to go with it. I'm relatively new to growing from seed but I'm a particular sort of person and figured that consistent temperature was probably important for speeding up sprouting... ...I was right. I notched a little hole for the cable out of the plastic dome and fed the probe through, positioning it into the center of the tray and set it to 75 degrees. Setting it was really simple, so I'm not sure what the other reviews talking about it being impossible to figure out were doing... Press and hold the top button for a few seconds then press up or down to set the preferred temperature; east peasy. My basil, cherry tomato and pepperoncini seeds have been warming with the help of this mat and they're definitely sprouting quicker than before. I'll have to take a look and see if Vivosun makes a multi-outlet, multi-temp model because not every plant's seeds have the same optimum temperature for germination. In short? 5 stars from me. It works exactly as expected.
Trustpilot
2 weeks ago
4 days ago