Super Sprouter Digital Heat Mat Thermostat | 68-108F, 1000W

What a Digital Heat Mat Thermostat Changes About Propagation

An unregulated mat runs at one temperature, whatever the room is doing. This controller puts a number on it, holding anywhere between 68 and 108 degrees F, which is 20 to 42 C. The mat plugs into the thermostat, the probe goes wherever the reading matters, and the backlit display shows what the probe actually sees. Maximum rating is 8.3 amps or 1000 watts, which is enough to run a daisy chain of mats rather than a single one. It is ETL listed and carries a one year warranty. Probe placement is the whole game. Laid on the bench it reads the bench, tucked into the media it reads the root zone, and those numbers rarely match.

Setting a Heat Mat Temperature Controller for Seeds and Clones

A heat mat temperature controller is not a set-and-forget device, because the right target changes with the stage. Germination generally wants a warmer root zone than rooted cuttings do. Cuttings under a closed dome also need less mat than the same cuttings in open air. Push the probe into a cell in the middle of the tray rather than at an edge. Edge cells read cooler, which leaves the controller overheating the centre. Watch the display for a full lights-on and lights-off cycle before deciding the setting is right. One practical limit: this regulates the mat, not the air, so a cold room still leaves cool leaf surfaces above a warm root zone.

Key Features

• 68 to 108 degree range: Covers germination, rooting and holding, all on a single settable number.
• 8.3 amps and 1000 watts: Enough headroom to regulate several daisy-chained mats rather than just one.
• Placed temperature probe: The reading comes from where you put it, not from inside the controller box.
• Backlit digital display: Readable in a dark propagation room without a torch.
• ETL listed: A third party listing rather than an unverified claim, with a one year warranty.

Technical Specifications