Environmental monitoring is crucial for understanding and protecting our ecological environment, and temperature is an important parameter in environmental monitoring. Dry-block calibrators have an indispensable position in the calibration of temperature instruments in environmental monitoring. In environmental monitoring stations such as meteorological stations and water quality monitoring stations, there are a large number of temperature measuring instruments, such as air temperature sensors and water temperature sensors. The accuracy of these instruments directly affects the reliability of environmental monitoring data. Dry-block calibrators can regularly calibrate these temperature instruments according to relevant environmental monitoring standards, ensuring that they can accurately measure temperature under different environmental conditions. For example, in cold polar regions or hot desert regions, temperature instruments calibrated by dry-block calibrators can provide accurate temperature data, providing strong data support for environmental science research and management work such as meteorological research, climate change analysis and water resource protection, helping us better understand and deal with environmental problems.