The TESTO 174 H mini data logger is ideal for efficient commissioning, inspection and maintenance of all HVAC/R systems, as well as for convenient fault diagnosis and monitoring of the indoor climate. It reliably records temperature and humidity within a measuring range of -20 °C to +70 °C, displays current values and limit value violations and stores up to 16,000 readings. With user-friendly programming and evaluation via professional software, including Excel export and PDF reporting, it provides accurate and convenient monitoring and documentation. The testo 174 mini data loggers designed for food and pharmaceutical applications, including food certification.