407113-NIST / Extech เครื่องวัดความเร็วลม Anemometer Display Air Flow (CFM) or Air Velocity plus Temperature simultaneously.Super large (9999 count) LCD display.
407119-NIST / Extech Heavy Duty Hot Wire CFM Thermo-Anemometer with NIST Calibration Accurately measure Air Flow (CFM/CMM) or Air velocity plus °F/°C Temperatureb
407123-NIST / Extech เครื่องวัดความเร็วลม Anemometer Telescoping probe is ideal for measuring in HVAC ducts and other small vents.Extends up to 7ft (2.1m) maximum length with cable.