<https://techmaster.com.vn/en/extech-407113-metal-vane-anemometer-heavy-duty-cfm/#webpage>
<http://schema.org/description>
"Extech 407113 CFM Metal Vane Anemometer measures Air Velocity from 100 to 6890 ft./min, 0.5 to 126 m/sec, 1.8 to 126 km/hr."
<https://techmaster.com.vn/en/extech-407113-metal-vane-anemometer-heavy-duty-cfm/>