The AN250W is a small airflow meter with Bluetooth® connectivity that allows building, HVAC, and maintenance professionals to see and share air velocity and temperature data directly from a mobile device via the free ExView app. Users can receive greater insights into environmental conditions and building health by capturing data, visualizing patterns, setting visual and auditory warnings, and creating and sending reports. The AN250W is part of the Extech 250W Connected Series of products, which can help you evaluate problems and report on them in the field. This enables you to increase the speed and quality of judgments so that urgent issues can be addressed instantly.
| Air Velocity (ft/min) | 295.2 to 5905 ft/min |
|---|---|
| Air Velocity (ft/min) Basic Accuracy | ±5% full scale |
| Air Velocity (ft/min) Max Resolution | 1 ft/min |
| Air Velocity (km/h) | 5.4 to 108 km/h |
| Air Velocity (km/h) Basic Accuracy | ±5% full scale |
| Air Velocity (km/h) Max Resolution | 0.1 km/h |
| Air Velocity (knots) | 2.9 to 58 knots |
| Air Velocity (knots) Basic Accuracy | ±5% full scale |
| Air Velocity (knots) Max Resolution | 0.1 knots |
| Air Velocity (m/s) | 1.5 to 30 m/s |
| Air Velocity (m/s) Basic Accuracy | ±5% full scale |
| Air Velocity (m/s) Max Resolution | 0.1 m/s |
| Air Velocity (mph) | 3.3 to 67 mph |
| Air Velocity (mph) Basic Accuracy | ±5% full scale |
| Air Velocity (mph) Max Resolution | 0.1 mph |
| Beaufort Wind Force | 0 to 12 |
| Beaufort Wind Force Basic Accuracy | ±1 |
| Beaufort Wind Force Max Resolution | 1 |
| Sampling Rate | 0.5 sec |
| Temperature (Air) | 14 to 122°F (-10 to 50°C) |
| Temperature (Air) Basic Accuracy | ±4°F (±2°C) |
| Temperature (Air) Max Resolution | 0.2°F (0.1°C) |
| Wireless Connectivity | Bluetooth® (via ExView iOS/Android mobile app) |
| Wireless Transmission Range | up to 90 m line of sight |
| Certifications | CE, FCC, UKCA |
| Dimensions | 6.9 × 2.1 × 1.1 in (176 × 53 × 28 mm) |
| Operating Conditions | 32 to 104°F (0 to 40°C), ≤80% RH |
| Power | 3 × AAA (1.5V) batteries |
| Warranty | 2 years |
| Weight | 3.2 oz (90 g) |
