[Features] ■1-second installation, plug-and-play, easy DIY setup. ■ Accurate measurements with TAF certification. ■ Color LCD display for temperature/humidity/battery level. ■ Data logging function with over 10 years of storage capability. ■ Mobile management: SMS alerts for abnormalities and power outages. ■ SIM card: Web page automatically detects installation status, searches for network, and displays signal strength. ■ Customizable alarm threshold values. ■ Supports 20 sets of phone numbers for two-tier management. ■ 100% Made in Taiwan. ■ Sensor battery capacity of up to 15000mAh. ■ With good communication, the battery can last for over two years with one-minute interval sensing. [Applications]：Vaccines refrigerator、Medical refrigerator、Blood Bank、Cold chain、 Temperature warning.