The YELLOW JACKET® YJACK FLOW measures and displays duct air speed readings and automatically calculates quantity and location of readings in ducts and meets AHRI standards. YJACK FLOW takes accurate air flow measurements up to 30 m/s, measuring the entire duct flow to account for turbulence or completes a single line air flow for fast duct to duct flow comparisons.

Users may view system readings on the integrated display or view and analyze all system measurements with the YJACK VIEW® app 5.0, which includes the new Anemometer session to display the YJACK FLOW air volumetric measurements. The YJACK VIEW® app displays and stores the duct size, wand placement requirements and the data averaged to give you volumetric flow. Once all the system measurements have been captured, the reporting function saves the readings in a customizable PDF service report.

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  • Measure and displays duct air speed readings in fpm, ft/s, m/s and m/min
  • Automatically calculates quantity and location for readings in rectangular or circular ducts based on ASHRAE standard 41.2P
  • Easy to verify air speed before sending to YJACK VIEW® App for data recording and CFM calculations
  • Interchangeable telescoping wands: 18″ (included) and can easily change to 36″ (optional) for large ducts without the need for calibration
  • Quick-coupler fitting for versatile wand attachment
  • Electronic paper display with clear visibility – even in direct sunlight
  • Magnet mount secures probe in duct for hands-free monitoring
  • Bluetooth 5.2 compliant low energy radio
  • Air Flow Range: 0-98.4 ft/s (0-30 m/s)
  • Resolution: 1 fpm (0.01m/s)
  • Accuracy: +/1 0.5%
  • Operating Temperature: 32°F to 104°F (0°C to 40°C)
  • Temperature Accuracy: +/- 1.4°F
  • Storage Temperature: -4°F to 122°F (-20°C to 50°C)
  • Dimensions (with probe collapsed): 13″ x 1-1/4″ x 1-3/4″
  • AA Batteries (2) included
  • FFC (radio marked)
  • Protective Carrying Case
  • 2-Year Warranty
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