Master Airflow Measurement with the Vanlison Professional Hot Wire Anemometer Tackle HVAC diagnostics, ventilation system balancing, ductwork testing, and environmental monitoring with confidence using the feature-packed Hot Wire Anemometer. This professional-grade meter delivers precise, reliable readings of wind speed, air flow volume (CFM/CMM), and temperature – all in one rugged, user-friendly device. Why Professionals Choose: All Critical Air Measurements in One Hand: Go beyond simple wind speed. Measure air velocity in 5 units (m/s, ft/min, km/h, MPH, knots), calculate volumetric air flow (CFM or CMM) by entering duct area (ft²/m²), and monitor air temperature (℃/℉) simultaneously. Get the complete picture of your airflow system's performance. Engineered for Efficiency: The fast 0.8-second sampling rate provides instant feedback. Quickly capture and lock Peak (MAX) and Low (MIN) values to identify fluctuations or verify system specs. The large, clear dual display shows primary wind speed and secondary air flow/temp data at a glance. Designed for Real-World Use: Navigate menus and functions intuitively with dedicated keys (Power, Menu, Enter, ▲, ▼, Esc). The bright backlight ensures readability in dimly lit mechanical rooms or under ductwork. The extendable probe handle lets you position the directionally marked sensor (align with airflow arrow!) precisely where you need it. The protective cover safeguards the sensitive hot wire sensor when not in use. Specifications Summary: Wind Speed: 0.1-30.0 m/s, 20-5814 ft/min, 0.3-108.0 km/h, 0.19-58.3 knots, 0.22-67.2 MPH | Accuracy: ±(5%+1d) or ±(1%+1d) Air Flow (CFM): 0-999900 ft³/min | Air Flow (CMM): 0-999900 m³/min Temperature: 0°C to 50°C (32°F to 122°F) | Accuracy: ±1°C (±1.8°F) Sampling Time: 0.8 Seconds Power: 3 x 1.5V AA Batteries or USB Adapter Auto Off: 20 Minutes Dimensions: 152mm x 75mm x 32mm (6.0" x 3.0" x 1.26") | Weight: 160g (5.6 oz)