Measure air velocity, volume flow, and air temperature conveniently and accurately with the digital 100 mm vane probe with Bluetooth®. Designed for use with the compatible Testo multifunction measuring instrument (sold separately), this probe wirelessly transmits readings up to 20 meters away, eliminating cable clutter and simplifying operation in hard-to-reach areas. The intuitive measurement menu ensures fast setup and reliable results, even in turbulent flows—especially when combined with the optional funnel set and volume flow straightener. Thanks to its universal design, the probe is compatible with both Bluetooth and cable handles, and works with telescopic extensions for ceiling outlet measurements. With the intelligent calibration concept, only the probe head needs to be sent in for calibration, ensuring minimal downtime.