Check the listing for details. Thermal Anemometer Digital Wind Speed Meter Telescopic CFM/CMM Airflow Temp Test. Condition: New. Listed at 63.10 USD. 3-in-1 Digital Anemometer: The hotwire anemometer can accurately detect wind speed(m/s, km/h, ft/min, knots, mph), airflow(CFM/CMM) and temp(℃/℉),Measuring range:air velocity: 0.1~30m/s; air temperature: 0~ 45℃ (32~113℉); air volume: 0-999900m³/min Retractable Sensor Wind Speed Meter: The wind speed meter features a retractable sensor design that is ideal for accurate measurements in tight spaces such as air conditioning vents. It is also waterproof and dustproof, and the probe size is 298.5*40.84*23.7mm LCD Display: The LCD display offers a clear presentation of wind speed with maximum, minimum, and real-time values, as well as airflow, temperature, and humidity. The wind meter equipped with anti-interference touch keys, data hold keys, and a low battery display function, ensuring accurat.