Features: Precision temperature control with 0.1 accuracy ensures optimal fermentation conditions for various foods. Built-in 75 thermal protection prevents overheating while maintaining consistent heat distribution. Dual-layer insulation construction combines pearl cotton and aluminum foil materials, offering durable cold and hot retention with reinforced stitching to prevent bursting. Washable heating system features waterproof front fabric and insulated back cotton, designed for easy cleaning while minimizing heat loss during operation. Multi-purpose fermentation chamber supports bread proofing, yogurt culturing, tempeh production, chocolate tempering, and probiotic foods like kombucha and soft cheeses. Product Specifications: Probe cable: 1 meter. Voltage: 220V. Control range: 24-33.4. Insulation thickness: 3cm composite material.