The AN250W is a compact airflow meter with Bluetooth® connectivity, which allows building, HVAC, and maintenance professionals to view and share air velocity and temperature data directly from a mobile device using the free ExView app. With the capability to capture data, display trends, set visual and audio alarms, and create and send reports, users can gain deeper insights on environmental conditions and building health. The AN250W is part of the Extech 250W Connected Series of products that can improve your ability to evaluate problems and report on them from the field. This allows you to improve the speed and quality of decisions to address critical issues immediately.
Specifications
| General | |
|---|---|
| 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 [mph] | 3.3 to 67 mph |
| Air Velocity [mph] Basic Accuracy | ±5% full scale |
| Air Velocity [mph] Max Resolution | 0.1 mph |
| 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 |
| 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 |
| Additional Details | |
|---|---|
| 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) |
Resources & Support
Quick Start Guide
Extech AN250W Quick Start Guide
Datasheet
Extech AN250W Datasheet
User Manual
Extech ExView Mobile App User Manual
User Manual
Extech AN250W User Manual
Datasheet
Scheda tecnica Extech AN250W
User Manual
Extech ExView Mobile App User Manual GB
User Manual
Extech AN250W User Manual GB
Certification
Extech AN250W Declaration of Conformity
Export Restrictions
The information contained in this page pertains to products that may be subject to the International Traffic in Arms Regulations (ITAR) (22 C.F.R. Sections 120-130) or the Export Administration Regulations (EAR) (15 C.F.R. Sections 730-774) depending upon specifications for the final product; jurisdiction and classification will be provided upon request.