ATO Temperature Data Logger can be used in refrigerated warehouses, distribution centers, agricultural greenhouses, pre-coolers, poultry breeding houses and laboratories, clean rooms, refrigerated trucks, trucks and container trucks. It is very suitable for monitoring facilities and equipment, pre-cooling operations, distribution routes and express delivery. This wireless monitoring solution can provide temperature, humidity and location information of temperature-sensitive products during storage, processing or transportation. The data can be downloaded from the BLE recorder through a mobile phone APP. The smart phone APP has an access user name and password, which can further ensure data security. The mobile smart device uploads the data to the network data platform, and the network can be accessed remotely. Applications of ATO portable Temperature Data Logger include refrigerated warehouses, distribution centers, agricultural greenhouses, pre-coolers, as well as laboratories, clean rooms, refrigerated trucks, trucks and container trucks. When the temperature exceeds the alarm condition, the system will send out an alarm via email and SMS. Relevant personnel can view the real-time temperature data of facilities, equipment, precoolers, and trucks during transportation. This allows them to know when the product has undergone changes in ambient temperature conditions or when the goods are delivered, and if there is a problem, they can take immediate improvement measures.