The Extech AN300 fits into one hand yet checks large duct systems with ease. It senses air speed and air warmth at the same moment, which saves time and cuts human error. Its sturdy body shrugs off everyday knocks, and the hard case shields the instrument while you travel. Moreover, you swap batteries fast, so downtime stays low.
Precise Air Velocity
Extech AN300 uses a 100 mm low-friction vane to sample air speed from 0.2 m/s up to 30 m/s. The wide span lets you test slow room vents or fast process lines with equal confidence. In addition, the ±1.5 % accuracy and real-time display mean results are clear on site.
Quick Air Volume Checks
With duct size keyed in, Extech AN300 instantly shows flow in cubic feet or cubic metres per minute up to 99 999. This direct read-out removes the need for manual maths, so reports are ready sooner. Coupled with the MIN/MAX and average modes, technicians gain repeatable data for trend logs.
The built-in thermometer covers −20 °C to 60 °C, letting you spot comfort issues or heat losses in one pass. Furthermore, the low-mass sensor reacts in seconds, which speeds up HVAC balancing. Because Extech AN300 runs on four common AAA cells, you can grab spares in any shop and finish the day’s work without delay.
Key features
- Extech AN300 measures air velocity and temperature at once.
- 100 mm vane reduces turbulence error in wide ducts.
- ±1.5 % accuracy delivers lab-grade repeatability.
- Direct CFM or CMM read-out ends manual calculation.
- MIN MAX and AVG modes track fluctuating systems.
- Back-lit LCD stays legible in dim plant rooms.
- Auto power-off and low-battery icon preserve runtime.
- Metric or Imperial units switch with one button press.
- Lightweight 200 g body eases long inspection days.
- CE marked device includes two-year warranty support.
