SUNCORE H3, Seedling Mat 10” x 20.75” /w Smart Heat Controller

This heating mat works exactly as expected. It heats evenly, is well made, and has helped improve my seed germination. The size is perfect for a standard seed tray, and it’s easy to set up and use. It maintains a consistent temperature without getting too hot. If you’re starting seeds indoors, this is a great investment. I would definitely buy it again.

Works perfect. Keeps everything warm and comfy. Great price. The company is really good with their pricing. It takes a minute to figure it out. But then you're good to go. Perfect size for my dome. Finally it's super easy to use. A set it and forget it kinda thing.

I'm NOT getting paid for this review and not getting compensated in any form or fashion. I love AC Infinity company, their customer service is second to none and they have top quality growing supplies. I was excited when I found out that a digital version of the heating mat is coming out which I thought would be more convenient and I wouldn't have to use a thermometer/hygrometer to put inside the dome to monitor temperature and humidity to have proper germination and/or cloning rooting success rates but when I received it I was quickly disappointed because first of all for those in colder climates will have issues getting temperature to 80° or above 80° because for some reason even when I set the temperature to get to 110° it takes quite a while to climb to 102° but when I check the temperature with a couple of separate thermometers It shows that the temperature is around 74 to 76° and in order to get it to climb up I would have to put something under the heating mat like a piece of plywood or styrofoam and I add one of the Amazon bubble envelopes too avoid losing any of the heat radiating down to the floor and that definitely helps but if someone needs higher temperatures like 84° for instance I don't think they will be able to achieve that with this heating mat. For the most part the temperature that's needed for my plants for germination is 78 to 80° which is the sweet spot and to get there I have to set the temperature to 102° and it fluctuates between 100 and 102°, which actually keeps the temperature at 78 to 80° F with a piece of plywood under the heating mat and a couple Amazon bubble envelopes stacked on top of each other. The one that I would recommend is the same one but with the dial/knob which works flawlessly and I would need to have the temperature either in the middle or between the first quarter and the middle. Just make sure you use a thermometer/hygrometer inside the dome to dial in temperature and humidity. Here's the hygrometer / thermometer set of four that I highly recommend and they have two options either without a probe or with the probe. The ones with the probe you can only measure the temperature with the probe but to measure temperature and humidity you would need to unplug the probe and put the device itself inside the dome but if you never need to check only temperature then get the ones without the probe because it's a little cheaper and you won't have that probe port open that can get dirty and something can get stuck in there. These are a lot more reliable than those really cheap ones, the black rectangular ones. Here's the link 👇 4PCS Mini Digital Hygrometer and Thermometer Reptile Thermometer with Extend Probe (Only Temperature) Indoor Temp and Humidity Meter with Magnet https://a.co/d/aYE6XyD I hope this review helps 😊

I exactly what you need

Unfortunately it does not function at all. If I have it set to 79 degrees F, thermometer will read 80 degrees. If I have it set to 81 degrees, it will claim it is 82 degrees. I set it to 78 degrees, it will claim it is 79 degrees. All while the real temperature is 76 degrees F. Etc. Never once has it turned on in days of messing with it.

I love this heating mat. It has a great controller which lets you digitally set a precise temperature and a thermometer reading so you know exactly how accurate it is. I bought it to start some rare and unusal seeds which I had attempted to cultivate 4 spring season attempts with no results. This time I had sprouts coming up in two weeks and the seedlings look beautiful. My new greenhouse tried to murder them by unpredicatably heating up WAY hotter than I anticpated (thanks Mother Nature!) so I moved them into my house with the mat and grow lights and most of them are doing amazing. I highly recommend this mat!

You have to keep the tomatoes and peppers warm if you want to get the best results. AC infinity never lets me down. Having a digital thermometer so I know that I'm not over heating the seedlings is important. Value is great! It couldn't be more easy to use. Plug and play. The bag to put it in when you're done is a nice bonus.

I ordered 2 of these seedling heating mats from Amazon. Neither of them appeared to be radiating the slightest bit of heat; even when turned all the way up. Another customer contacted me about the same issue. But when I reached out to AC INFINITY, they contacted me back promptly, and made the situation right, on the spot. OUTSTANDING CUSTOMER SERVICE! Truly grateful.

I like the thermometer, it's easy to read.

Angaben können nur in Fahrenheit geregelt werden, ansonsten wird die Raumtemperatur über das Steuergerät ausgelesen, NICHT über die Heizmatte. Regelt aber korrekt bei mir und sehe darin eine Stromersparnis, da nicht durchgehend beheizt wird, sondern nur wenn die Raumtemperatur sinkt.

جيد وممتاز ولاكن لاينصح به لمن يزرع بتربة لانه غير دقيق بدون مسبار لضبط حرارة التربة والارقام غير دقيقة ١٠٠٪؜ يجب ان تضع كرتون تحت الوساده وقماش او كرتون فوقها لتضمن عدم ضرر بذورك وشتلاتك

Sehr gut

Für den Betrieb ist ein kurzes Bodenthermometer (z.B. ASIN: B06XD2YY86) sowie ein weiteres Thermometer zur Messung der Raumtemperatur erforderlich. Vor der ersten Inbetriebnahme sollte man die Heizmatte auf die Werkseinstellungen zurücksetzen. Dann sollte man sich mehrere Tage Zeit für einen Testlauf nehmen und die Ergebnisse protokollieren. Die Raumtemperatur sollte nicht zu niedrig sein: Bei 16°C und Setting = 24°C dauert es mehr als 12 Stunden, bis sich das Substrat in einer abgedeckten Pflanzschale auf 18°C erwärmt hatte. Also habe ich das Setting auf 28°C erhöht und warte nun auf das Resultat. Soviel zu den ersten 24h meines Testlaufs. Die Digitalanzeige "Sensor" zeigt übrigens nicht die Raumtemperatur an, sondern die aktuelle Arbeitstemperatur der Heizmatte. Bei Erreichen der eingestellten Setting-Temperatur soll sich die Heizmatte automatisch abschalten, aber Vorsicht! Die Setting-Temperatur ist NICHT die Bodentemperatur, die muß extra gemessen werden. Man muß sich also erstmal auf die Heizmatte einfuchsen, aber dann sollte alles passabel gut funktionieren.