Fieldpiece STA2 Thermal Anemometer Hotwire AirFlow Meter

Minimum Purchase:
1 unit
  • Fieldpiece STA2
  • Fieldpiece STA2
MSRP: $485.00
Price: $412.25
— You save $72.75


Fieldpiece STA2 - In Duct Hot-wire Anemometer

CFM Without a Hood - For HVACR Pros Air Balancing Needs

The STA2 is a Hot-wire Anemometer built for the HVACR professionals' air balancing needs. The compact probe tip makes measuring air velocity directly in the duct a breeze. It's great for traversing a duct and automatically calculating CFM without the hassle and expense of a bulky hood. The 38" telescoping probe's laser etched ruling and flattened edges allows techs to locate proper measurement points within a duct, and ensures that the probe is properly aligned. This in duct hot-wire anemometer quickly calculates CFM from air velocity and free area. And with the intuitive interface, the STA2 makes it easy to capture the correct data.


  • Measures air velocity and temperature
  • Calculates CFM
  • Slim 38" telescoping probe for in duct traversing
  • Fast response time
  • Dual display for combo of real-time CFM, air velocity, or temp
  • Depth and direction indicators
  • Minimizes turbulence effect with time/test point averages
  • Hands-free testing with stabilizing cone and magnetic hanger


Sensor Thermistor
Range -4°F to 140°F (-20°C to 60°C)
Resolution 0.1°C, 0.1°F
Accuracy ±1.0°F for 32°F to 113°F
±2.0°F for -4°F to 32°F, 113°F to 140°F
±0.5°C for 0°C to 45°C
±1.0°C for -20°C to 0°C, 45°C to 60°C
Sensor Micro-glass bead thermistor
Range 40-3960 fpm (0.20-20.00 m/s)
Resolution 1 fpm (0.01 m/s)
Accuracy ± (5%+1 dgt) reading or ± (1%+1dgt) full scale
Units fpm, m/s, km/hr, mph
Temperature coefficient 0.1 x (specified accuracy) per °C for 0°C to 18°C, 28°C to 50°C (32°F to 64°F, 82°F to 122°F)
Accuracy Stated accuracy @ 73°F±9°F (23°C±5°C),<90%RH
Operating environment -4°F to 122°F (-20°C to 50°C) at <75%RH
Storage temperature -4°F to 140°F (-20°C to 60°C), 0 to 80% RH (with battery removed)
Battery 9V
Battery life 20-35 hours approx. (alkaline)
Auto Power off after 15 minutes of inactivity if APO is active
Dimensions 7.2 in (H) x 2.5 in (W) x 1.3 in (D)
Weight 12 oz. (340g) including battery


  • (1) Hot-wire Anemometer - STA2
  • (1) Stabilizing Cone
  • (1) Blow-molded Case with Padding
  • (1) Certificate of Conformity


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