The TESTO 440 set is a professional measuring solution that combines a modern multifunctional meter with a precise humidity probe featuring Bluetooth technology. This combination allows for fast and accurate measurements of temperature and humidity in a wide range of environments — from HVAC installations and laboratories to warehouses and production facilities. Thanks to its compact design and practical transport case, the TESTO 440 set is always ready for use both in the field and under demanding working conditions.
At the heart of the set is the TESTO 440 meter — an intuitive device with a large, backlit display that automatically recognizes connected probes. This ensures exceptionally easy operation, allowing the user to switch between different measurement types without manual configuration. The meter offers a clear measurement menu with the ability to define measurement durations and cycles, making it ideal for long-term monitoring of air parameters and environmental changes.
The second key component of the set is the TESTO humidity and temperature probe with Bluetooth communication, enabling wireless data transmission at distances of up to 20 meters. This feature allows measurements to be taken even in hard-to-reach places while maintaining full operating comfort. The probe provides highly accurate readings of relative humidity, air temperature, dew point, and absolute humidity, enabling comprehensive assessment of microclimatic conditions.
The TESTO 440 set is designed for mobility and user convenience. Its built-in memory can store up to 7,500 measurement results, which can be easily exported via USB in CSV format for further analysis. The robust meter construction and dirt-resistant probe housing ensure reliability in daily use. TESTO 440 combines precision, functionality, and modern technology, making it an indispensable tool for professionals involved in monitoring air quality and environmental parameters.
