Seedling Heat Mat 20 inch x 20 inch ~ 45W Ona It needs about 3 square

It needs about 3 square feet of net attic venting and fits standard framing

Assembly is simple

One-Year Limited Warranty

Time to Reading Stabilization: 10 - 20 seconds Active Mode Power Consumption: 30 - 100 mA Sleep Mode Power Consumption: 2 μA Temperature Measurement Range: 0 - 71 °C or 32 - 160 °F Temperature Accuracy Displayed: ± 0

Seedling Heat Mat 20 inch x 20 inch ~ 45W Ona It needs about 3 squareRe engineered for better performance and greater durability! The new, stronger heating wire, and thicker multi layer construction offer more uniform heating and the durability to withstand rugged greenhouse environments. Increases success of seedlings and cuttings Warms root area 10 20F over ambient temperature to improve germination Light, watering and planting information on mat Waterproof construction 6 foot power cord The only UL Listed seedling