The TESTO 440 ComboKit 1 measurement set is a professional tool designed for HVAC technicians and service specialists who require fast and accurate measurements of air flow velocity and differential pressure. At the core of the kit is the multifunction TESTO 440 meter with an integrated differential pressure sensor and Bluetooth connectivity, enabling wireless data transfer to the TESTO app and convenient data logging. Its robust, ergonomic housing and intuitive interface make operation simple and efficient, even in demanding service conditions.
The kit includes a precise Ø100 mm vane probe with Bluetooth and an integrated temperature sensor, a thermal anemometer (hot wire) probe head with temperature and humidity sensors, and a telescopic handle with a 90° angle adapter for easy access to ducts and grilles. Additionally, the ComboKit 1 comes with a universal probe handle (Bluetooth), a pressure measurement hose, USB cable, batteries, a transport case, and a factory calibration protocol — providing everything needed for complete field measurements without the need for additional accessories.
The TESTO 440 ComboKit 1 allows a wide range of measurements: from air velocity and volumetric flow to differential pressure, temperature, and humidity when using the included probe heads. Thanks to its dedicated functions and wireless Bluetooth connectivity, data documentation is quick and convenient — results can be exported and reports created without manual transcription, significantly speeding up service work and helping ensure compliance with quality procedures.
By choosing the TESTO 440 ComboKit 1, you get a complete, portable measurement set designed for practical use in ventilation and air-conditioning systems. It combines measurement precision with field convenience, enabling fast diagnostics and confident service decisions — all without the need to purchase additional basic probes or accessories.



