Benefits Comprehensive IAQ Measurement – Measures all IAQ parameters, including flow velocity, temperature, humidity, pressure, CO2, CO, and more. Easy to use – Intuitive menu and extendable telescope (up to 0.85 m) with scaling for convenient duct access Extensible with Probes – Compatible with Bluetooth® and cable probes for flexible measurement options. Reliable airflow measurements – Hot wire probe with temperature sensor for precise duct airflow assessment Data Management & Reporting – Includes analytical software for easy data analysis, reporting, and customer management. Description The testo 440 Hot Wire Kit is a professional-grade solution for precise measurement of air velocity, temperature, and indoor air quality parameters in ventilation systems. It includes the testo 440 multifunction measuring instrument and a hot wire probe (Ø 9 mm) with an integrated temperature sensor—all packaged securely in a durable case for immediate use.With an extendable telescope up to 0.85 m and clearly scaled markings, the kit enables accurate airflow measurements even in deep or hard-to-reach duct areas. The intuitive menu system simplifies setup and operation, especially when determining volume flow and duct air velocity.Designed for professionals in HVAC, facility management, and building inspection, the testo 440 device supports digital Bluetooth® and wired probes, ensuring seamless expansion for CO₂, humidity, pressure, and more. The system’s smart data management capabilities allow efficient reporting and export of measurement data for compliance or analysis purposes. Delivery Scope testo 440 air velocity and IAQ measuring instrument, 3 x AA batteries, USB cable and calibration protocol Hot wire probe (Ø 9 mm) with fixed cable (length 1.7 m) including temperature sensor, with telescope (can be extended to 0.85 m) and calibration protocol (0635 1032) Basic case for testo 440 and 1 probe
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