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  • AP2
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  • For use with dry, clean air
  • Range:
    • Air Velocity: 0 to 6000 FPM (0 to 30 m/s)
    • Volumetric Air: 999,999 in selected flow units
    • Temperature: -20 to 212°F (-29 to 100°C)
  • Accuracy:
    • Air Velocity: ±3% FS within temperature range of 40 to 90°F (4 to 32°C)
    • Temperature: ±0.5°F (±0.28°C)
  • One second response time
  • Probe Length: 8
  • User replaceable lithium ion battery, installed
  • Maximum wireless distance: 50' (15 m)
  • CE, RoHS, FCC approved


The Dwyer AP2 wireless thermo-anemometer probe measures air velocity, air flow, and temperature when combined with the Model UHH Universal Handheld. In order to prevent damage to the sensing element, the probe has a protective sleeve that slides over the sensor when it is not in use. Markings on the probe allow users to know the insertion depth to obtain better accuracy when traversing the duct.

Wireless probes can take measurements up to 50 feet away from the UHH. A bicolor LED flashes on the handle of the probe to indicate communication status with the UHH. The battery is rechargeable via the mini-USB connector on the bottom of the probe.


This product can be used in the following applications: