• Two channel temperature and humidity data logger
• Internal NTC thermistor provides reliable temperature monitoring with a small footprint
• External "stump" humidity probe for quick, accurate measurements
• Large easy to read backlit display
• Large data memory capable of storing 1,000,000 measurements
• Data transfer possible using the USB port, or SD card (optional)
• IP54 protection class
• Capable of CFR 21 Part 11 Compliancy
• Free data logger software available for download
• Data is secured within the logger, and can be password protected using ComSoft
• Includes lockable wall mount to prevent theft or tampering

The testo 175H1 temperature and humidity data logger features a large display and alarm indication that makes it ideal for continuous monitoring of ambient temperature and humidity. The 175H1 has an external, stub type humidity sensor, making it best-suited for use in high humidity areas. Creation of Excel Spreadsheets, PDFs, and data analysis are all easily achieved with the free, downloadable ComSoft software. Please note: The testo 175H1 temperature measurement logger requires an interface to use the free data logger software. One interface can be used for multiple instruments. Monitoring and documentation of building air conditioning Temperature and relative humidity are crucial factors in assessing air quality and levels of comfort in indoor spaces, e.g. in workplaces. With the aid of data loggers, this data can be permanently monitored and documented. They are also excellently suited to the monitoring of ventilation systems or for assessing existing building moisture. With the use of special software, the measurement configurations can be customized and recorded measurement data can be both analyzed and stored. Monitoring and documentation of the storage temperature and humidity The proper observance of storage temperature and humidity is an important prerequisite for the quality control of many products; e.g. in the area of food and pharmaceutical products. To this end data loggers are usually used. They monitor and document the course of ambient conditions automatically, thereby contributing significantly to verifying that product quality is being maintained. The direct display of violations of limit values allows fluctuations in temperature and humidity to be responded to fast. With the aid of the configuration and read out software, custom measurement configurations can also be made and recorded measurement data can be both analyzed and stored.