-86 °C Ultra Low Temperature Chest Freezer is a microprocessor-controlled chest cabinet type ultra-low temperature freezer comes with 458 L of capacity. With auto-cascade cooling system and direct cooling method, features -60 to -86°C of temperature range with -86°C of cooling performance and manual defrost. Incorporated with LED display,CFC free refrigerant, and safety lock system is provided with advanced alarm system for high/low temperature, power failure, and sensor error.