Testo 440 Air Flow Kit 1 with Bluetooth Hot Wire Probe and Telescope 0563 4406

This kit pairs the Testo 440 multi-function measuring instrument with a hot wire probe and telescope, offering direct air velocity and temperature measurement in ducts and at outlets. The Bluetooth interface and app connectivity set it apart from conventional handheld anemometers.

Highlights

• Hot wire probe with extendable telescope up to 0.85 m for reaching ceiling outlets
• Air velocity range 0 to 30 m/s with high accuracy for HVAC commissioning
• Bluetooth and USB connectivity for mobile app and PC software
• Graphic backlit display and internal memory for 7500 measurement protocols
• Timed and multi-point mean calculation, volume flow, hold, and min/max functions

In daily use

The telescope extends to reach ceiling diffusers while the instrument calculates volume flow from duct dimensions. Measurement data can be logged and transferred via Bluetooth to the Testo Smart App or via USB to Testo DataControl software.

Full specifications

• Air velocity range: 0 to 30 m/s
• Air velocity accuracy: ±(0.03 m/s + 5% of mv) (0 to 2 m/s); ±(0.05 m/s + 5% of mv) (2 to 15 m/s); ±(0.1 m/s + 5% of mv) (15 to 30 m/s)
• Temperature range: -20 to +70 °C
• Temperature accuracy: ±0.5 °C
• Battery: 3 x AA Mignon, approx. 12 h life with hot wire probe
• Operating temperature (instrument): -20 to +50 °C
• Protection class: IP40

Final note

A practical kit for HVAC professionals needing reliable air flow and temperature measurement with digital documentation.