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  • Seed Trays
  • Seedling Heat Mat Temperature Controller

    10 reviews

    Thermostat Controller for Seedling Heat Mats

    Digital Temperature Control is designed to maintain uniform germination, propagation, and fermentation temperatures (68˚F-108˚) with the use of a Seedling Heat Mat. 


    • Compatible with all DSM&T
    • Compatible with most 120V mats
    • UL listed for safety
    • Temperature Display Range: 32°F-140°F 
    • Both Celsius and Fahrenheit display
    • 6' cord
    • Simple push-button operation
    • 120 Volts/8.3 Amps (1000W) max current/60 Hz
    • 1-year warranty

    Want to learn more about heat mats? Read this how-to article about how to use heat mats for seed starting.

    Free shipping on orders over $49 to Contiguous US

    Shipping Policy

    Most products will ship from our facility in 1 to 2 business days after the order is placed.  Express shipments placed after 12PM EST will be shipped out next business day. Full details can be found on our Shipping Policy Page

    Returns Policy

    Returns can be made on most products within 30 days of purchase. After 30 days we unable to offer a refund or exchange. Certain products are non-returnable. For full details visit our Returns Policy


    Ask a Question
    • is this thermostat compatible with the sunpad lite 20"x48" seedling heat mat or just the commercial sunpad pro heat mat?

      Yes the thermostat is compatible with any of the heat mats and is recomended to avoid overheating your seedlings.

    • How many of the 10x20 heat mats can be controlled with one thermostat?

      You can link up to 10 of the commercial seedling heat mats!

    Customer Reviews
    4.8 Based on 10 Reviews
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    Filter Reviews:
    Heather C.
    United States United States


    Very high quality products and excellent customer service… if feels good to buy USA made and sold.

    Kenneth C.
    United States United States

    Seedling Heat Mat Temp Controller

    I am using this with some bonsai seedlings that I started last year. so far, it is maintaining temperature well. I wish there were two more outlets to be able to include three heat mats per controller.

    Jacob C.
    United States United States

    Works well

    The first controller I got malfunctioned. Bootstrap Farmer quickly sent a new one and it works great. My seed germination and plant growth have greatly improved with the controlled heat mat.

    Nick G.
    United States United States

    Customer service

    I purchased this item a little over a year ago and it stopped working so i reached out and bootstrap replaced the item no questions no hassle and free of charge. This is a fantastic company that truly cares about their customers and their experience. Highly recommended this company before but now i’m even more of a fan

    Mark H.
    United States United States

    Great products, incredibly fast shipping.

    Just setting up my seed starting tables, ordered the controller and Master heat mat along with a couple other mats. Shipping was fast, packaging was very good, with all products packaged in heavy cardboard boxes. Controller operates as described and the mats appear to be heavy duty. Very happy with this purchase and will doing business with Bootstrap farmer again!