★ The main unit has magnets and a hook hole on the back, so it can be placed or hung freely. ★ Test batteries are included, but we will also include Panasonic batteries. ★ It has a function* to display the past highest and lowest temperature and humidity, so you can see how high (or low) the temperature and humidity in the room have been. ★ The discomfort index is calculated from the measured temperature and humidity, and the comfort level is displayed as "Cold", "Comfortable", or "Hot". 【Measurement Range】 Temperature: -5.0 to 50.0°C Humidity: 20 to 95% 【Minimum Display】 Temperature: 0.1°C Humidity: 1% 【Measurement Accuracy】 Temperature: 0 to 40°C ±1.0°C, Other ±2.0°C Humidity: 35 to 75% ±5%, Other ±10% 【Weight】 Approximately 168g (including batteries) 【Materials】 ABS, PMMA ★ It will be wrapped in bubble wrap and shipped via Yamato Transport's Compact service. ★ Time zone designation is possible ⑧ Thank you.