Super Sprouter® Seedling Heat Mat Digital Thermostat — 68–108°F

Precise Root-Zone Temperature Control — Super Sprouter Digital Thermostat, 68-108°F

The Super Sprouter Seedling Heat Mat Digital Thermostat adds precise temperature control to any compatible heat mat setup. Plug the heat mat into the thermostat, place the included temperature probe in the growing medium, and use the backlit digital display to dial in a specific germinating or rooting temperature. The 68-108°F (20-42°C) range covers needs from cooler seed germination to warmer tropical cuttings.

Key Features

• Digital temperature control removes the guesswork from mat-based propagation heating.
• Wide range, 68-108°F (20-42°C), for varied germination and rooting needs.
• Backlit digital display for easy reading in low-light grow spaces.
• Includes a temperature probe with a suction cup for flexible placement in the growing medium.
• Rated for up to 1,000W / 8.3A, supporting larger multi-mat setups.

Product Details

Temperature Range: 68-108°F (20-42°C) — Max Power: 1,000 W / 8.3 A — Power Cord: 6 ft (included) — Probe: Included, with suction cup — Manufacturer: Super Sprouter

About Super Sprouter

Super Sprouter is a Hawthorne Gardening Company brand, now under Vireo Growth, and this thermostat is designed to pair with its Seedling Heat Mat line.

Frequently Asked Questions

Which heat mats does this thermostat work with?

The thermostat is designed to pair with Super Sprouter Seedling Heat Mats. It's rated for up to 1,000W / 8.3A, which covers a daisy-chained group of smaller mats or a single larger mat within that power limit.

Where should I place the temperature probe?

Place the included probe directly in the growing medium near the root zone, using the suction cup to hold it in place against the tray or a nearby surface. Probe placement in the medium, rather than the surrounding air, gives the most accurate reading for propagation.

What temperature should I set for seed germination versus cuttings?

Most seed germination is comfortable in the lower-to-middle part of the 68-108°F range, while some tropical or heat-loving cuttings root faster nearer the higher end. Check specific guidance for your crop, since ideal temperatures vary by species.

When would I need the 1,000W rating instead of running mats without a thermostat?

Use this thermostat whenever you want automatic, precise temperature control rather than a mat running at a fixed, un-monitored output. The 1,000W rating covers larger daisy-chained mat setups that would otherwise need a separate temperature control solution.