Heavy Duty CFM Hot Wire Thermo-Anemometer Extech 407119

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The 407119 Heavy Duty CFM Hot Wire Thermo–Anemometer uses a telescoping probe (extends up to 3 ft) which is ideal for use in ducts and ventilating systems. It can accurately measure Air Flow (CFM/CMM), Air Velocity and Temperature. Air Flow can be displayed as an instantaneous value or up to a 20 point average. Additional functions include Data Hold, Min/Max, and Auto power off. Comes complete with telescoping probe with 5.5ft cable, and 4 x AA batteries.
Air velocity measurements as low as 40ft/min
Telescoping probe is ideal for use in ducts and ventilating systems; extends up to 3ft (940mm) long
Measures air volume in CFM (ft³/min) and CMM (m³/min) plus Temperature simultaneously
Air Flow displayed in 2 modes: Instantaneous value or up to 20 point average
Record/Recall MIN and MAX readings
Large 1.4″ (99,999 count) LCD display
Data Hold plus Auto Power Off

Specifications	Range	Resolution	Accuracy
Air Velocity
ft/min	40 to 3346ft/min	1ft/min	± (5% + 5 digits)
MPH	0.5 to 38.0MPH	0.1MPH
knots	0.4 to 33.0knots	0.1 knots
m/s	0.2 to 17.0m/s	0.1 m/s
km/h	0.7 to 61.2km/h	0.1km/h
Temperature
°F	32 to 122°F	0.1°F	±1.5°F
°C	0 to 50°C	0.1°C	±0.8°C
Airflow
CMM (m³/min)	0 to 36,000m³/min	0.001 to 1m³/min
CFM (ft³/min)	0 to 1,271,200ft³/min	0.01 to 100ft³/min