SFFfg 4001 Performance laboratory freezers with spark-free interior. Liebherr laboratory equipment conforms to EN/IEC 60079-0 or EN-IEC 60079-7 and complies with EU Directive 2014/34/EU (“ATEX Directive”). Classification of the interior to Ex> II 3 G Ex ec IIC T6 (declared as Zone 22) makes them suitable for flammable substances in closed containers that could form explosive atmospheres.

• Minimal temperature fluctuation of no more than ±5°C
• SmartFrost greatly reduces the frost build-up in the interior and on stored products, defrosting is required less often - and when it is necessary, it is made much easier by the smooth, easy-to-clean interior walls
• Mechanical lock with two keys
• Retrofittable Wi-Fi/LAN interface
• Environmentally friendly refrigerant
• Designed for a service life of 15 years
• Easy to clean interior
• Alarm relay
• Efficient refrigeration system
• Alarm test function
• Ten years spare parts availability
• Height-adjustable feet
• Alarm test
• Antibacterial lever handle
• Calibration function
• Interchangeable door hinge
• Replaceable door seal
• Cleanroom compatible
• Clear appliance information
• Demo mode
• Feedthrough for external sensors
• Hidden customer menu
• Hidden technician menu
• Intuitive menu navigation
• Almost maintenance free
• Power failure info
• Quick start guide
• Recommended cleaning products and disinfectant
• Reminder function
• Self-closing door ﹤90°
• Settings with password protection
• Side-by-side set
• Sturdy castors
• Min./max. temperature recording
• Temperature alarm
• Temperature stability and consistency EN 60068-3
• Reversible door hinges (left/right)