TSI Alnor AP500 AirPro Air Velocity Meter


TSI Alnor


7 in stock

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  • Multiple plug and play probe configurations
  • Stackable probe extensions
  • 20.36 to 36.65inHg (517.1 to 930.9mmHg) pressures
  • ±2% of reading accuracy
  • 0.4in digit display
  • 40 to 113°F (5 to 45°C) operating temp

What's in the Box

  • Universal AC/DC Adapter
  • Lithium-Ion Battery
  • Calibration Certificate
  • Quick Start Guide
  • Service and Registration Cards

The TSI Alnor AP500 AirPro Air Velocity Meter is a rugged, compact, configurable and high performing component of the AirPro Solutions platform. It is used in conjunction with AirPro Mobile Application Software, plug- and play measurement probes and user-defined feature sets. It includes a barometric pressure sensor for air density correction, integrated display, two buttons (power and save) and a rechargeable lithium-ion battery; which can be charged via USB. It provides a subset of operational controls and reporting capabilities while utilizing Bluetooth Low Energy (BLE) to communicate wirelessly in real-time with the AirPro Mobile Application software running on the user's preferred mobile hand-held device. It also provides internal storage for use in long or short-term unattended data logging applications via SD card.

Applications for the AP500 include:

    HVAC testing and balancing Clean room testing Biological safety cabinet and laboratory fume hood testing HVAC commissioning and troubleshooting Ventilation evaluations Face velocity measurements

Required Components

These additional components are required for the operation of your product. We strongly advise you to purchase these components unless you already own them or own a suitable alternative.

TSI Alnor AP-MOBILE Application Software
Auto-connects to the instrument, remotely display instrument measurements


Please consider these optional accessories.

TSI Alnor VT Series Thermoanemometer Probes
Air Velocity, temperature humidity probes, straight or articulated probes
In Stock
TSI Alnor TH-S Thermohygrometer Probe
Temperature and Humidity Thermohygrometer Probe, straight probe
TSI Alnor 800529 Probe Extension
AP500 12in (305mm) Probe Extension
TSI Alnor Static Pressure Probes and Tubing Kit
Static Pressure Probes and Tubing Kit
TSI Alnor Small Airpro Carrying Case
Small Airpro Carrying Case
TSI Alnor 800535 Large Airpro Carrying Case
Large Airpro Carrying Case
TSI Alnor 800531 AirPro AC/DC Adapter
TSI Alnor 800532 Lithium-ion Rechargeable Battery
Lithium-ion Rechargeable Battery


This product can be used in the following applications:

Application Notes

Here's how some of our customers used this product.

Improving the Efficiency of Fume Hood Testing

The Background: The customer, an Industrial Hygienist, is looking for a more efficient and effective way to test fume hoods.

The Problem: Fume hoods are generally tested by moving an air velocity meter in a grid pattern across the opening of the fume hood and taking individual readings. This method is time consuming.

The Solution: Using multiple AP500 units, in this case six, placed in a testing jig allows multiple readings be taken simultaneously, drastically cutting testing time and improving testing efficiency.