Temperature & Humidity Data Logger The device is mainly used to monitor the temperature and humidity data of food, medicine, chemical products and other products during storage and transportation. It is widely used in all links of warehousing and logistics cold-chain, such as reefer containers, refrigerated trucks, refrigerated distribution boxes, cold storage laboratory, etc. Compact and light, it is economical to use. After the recording is completed, it is inserted into the computer without any driver and automatically generates reports.