Laboratory heating/cooling equipment is the core component of a laboratory temperature control system, mainly including constant temperature water baths, circulating coolers, and muffle furnaces. Constant temperature water baths typically range from room temperature to 100°C, circulating coolers can reach temperatures from -30°C to room temperature, and muffle furnaces can reach temperatures exceeding 1200°C. These devices are widely used in chemical synthesis, biological culture, and other applications requiring precise temperature control.