According to the recording and storage methods, there are several types: paper temperature and humidity recorders (mechanical), paperless temperature and humidity recorders (electronic), and massive temperature and humidity recorders (electronic)
There are several types of temperature and humidity recorders according to installation methods: fixed temperature and humidity recorders, portable temperature and humidity recorders, USB temperature and humidity recorders, and massive temperature and humidity recorders
There are several types of data transmission methods: temperature and humidity recorders (limited or USB flash drives), massive temperature and humidity recorders (TF card readers), and wireless temperature and humidity recorders (wireless)

The principle of temperature and humidity recorder
A temperature and humidity recorder measures temperature and humidity parameters and stores them in internal memory at predetermined time intervals. Some can even set alarms, which are triggered when the temperature and humidity reach a certain range. An instrument that connects to a PC after completing the recording function, uses adaptive software to extract stored data, and analyzes it according to its values and time. This instrument can be used to determine that there have been no incidents that endanger product safety during the storage and transportation process, experimental process, and other related processes.

Temperature and humidity recorders are used in industries such as food storage and transportation, museums, building materials experiments, agriculture, forestry, animal husbandry, medical and health facilities, and pipeline maintenance.