TSI Alnor


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  • Velocity
    • Range: 50 to 6,000 ft/min
    • Accuracy: ±1.0% of rdg ±4 ft/min
  • Duct Size Range: 0 to 173.6 ft2
  • Temperature
    • Range: 32 to 140°F
    • Accuracy: ±2.0°F
    • Resolution: 0.1°F
  • Calculates flow rate, performs averaging, and can determine minimum and maximum readings
  • NIST Certificate Included
  • Data Storage: 12,700+ samples and 100 test IDs
  • Logging Interval: 1 second to 1 hour
  • Time Constant: User-selectable

The TSI Alnor VelociCalc 5725 rotating vane anemometer is a high performance, yet simple to use, rotating vane anemometer. High accuracy and reliability make the VelociCalc 5725 the professional's ideal tool for measuring unevenly distributed or fluctuating flows through heating and cooling coils, diffusers, grilles and filters. With accuracies of ±1.0% (velocity) and ±2.0°F (temperature), the VelociCalc 5725 measures offers wide measurements ranges of 50 to 6,000 ft/min for velocity and 32 to 140°F for temperature.

While accurately measuring air velocity and temperature, TSI Alnor VelociCalc 5725 rotating vane anemometers also calculate flow rate, perform averaging, and can determine minimum and maximum readings. Using sweep mode you can quickly provide one averaged reading of velocity or volume over a large measurement area. The large vane head automatically averages velocity and volume readings. The VelociCalc 5725 includes variable time constant, sampling and statistics functions and data logging capability for 12,700+ samples.

The TSI Alnor VelociCalc 5725 rotating vane anemometer ships complete with a 4-inch (100 mm) vane, carrying case, alkaline batteries, operation and service manual, USB cable with LogDat2 downloading software and calibration certificate.

Power Supplies

TSI Alnor Universal Power Supply
Universal AC adapter designed for use with TSI Alnor instruments


TSI Alnor Rotating Vane Anemometer Carrying Case
Carrying case designed for use with the TSI Alnor rotating vane anemometers


Please consider these optional accessories.

TSI Alnor RVA Telescopic Rod
36" telescoping rod to increase the reach of TSI Alnor rotating vane anemometers
TSI Alnor RVA Air Cone Flow Hood Kit
Maximizing the usefulness of rotating vane anemometers by turning them into air volume flow balancing tools


This product can be used in the following applications: