Always display current temperature, lowest and maximum temperature. When you connect the external sensor, it will automatically switch from the built-in sensor (IN) to the external sensor (OUT) display. You can easily understand the management width (e.g. 2 - 5 °C) at a glance. The main unit can be installed inside the refrigerator (use an external sensor in the freezer. JIS C 0920 IPX5 compliant (Safe to use in wet environments. ) We use a low thickness flat cable to easily pass or pinch through the gap between the refrigerator and freezer doors. Display Resolution: 0.1℃ Fine temperature management is possible. Hygienic product (antibacterial material used in the case of the main unit. The external sensor temperature is made of stainless steel (SUS304). There are 3 types of mounting methods: tabletop (with stand), hanging (with hooks), paste (using magnet).