So-Low Ultra-Low -85°C freezers are produced with high quality craftsmanship, heavy-duty materials, and over 50 years of experience. These freezers use a cascade refrigeration system, providing reliable and durable environmental conditions for your product’s vital temperature requirements. So-Low Ultra-Low freezers are available in wide variety of sizes and styles, to accommodate for each customers required conditions. Combined with our nation-wide service network, our Ultra-Low Freezers have various options for additional temperature recording devices, providing the highest level of quality temperature transcription.