Liebherr SmartMonitoring is a comprehensive solution for documenting and monitoring measurement and operating data, alarm messages and device states. The SmartCoolingHub required for this can be directly connected to this device via the available RS 485 interface. The alarm testing allows you to check whether the alarm system is functioning properly (no matter if it is internal or external). The test has no effect on the performance of the refrigerator. The inside temperature shown on the digital display is rounded to the nearest degree and can be easily read from the outside. This eliminates the need to open the appliance. Highly efficient fans cool down freshly inserted food quickly and keep the temperature constant throughout the interior. Liebherr has been accumulating experience and research and development in the field of cooling for decades, guaranteeing the highest quality equipment refrigeration. By using only the highest class compressors, condensers, evaporators and other components of the cooling system, Liebherr creates energy-saving devices with low operating costs. The serial interface can be used to connect the devices to external monitoring systems. If you do not have a monitoring system that can be connected via a serial connection, you can purchase an upgrade kit (available as an accessory) that allows you to connect to a desktop computer or laptop. Up to 20 devices can be networked via the serial interface. Temperature and alarm information can be documented and archived via Liebherr's temperature monitoring software.