Details

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TM-402~404 Air Velocity Meter

 

• 30mm 6 plastics vane
• Light air response 0.4m/s.
• Air flow calculates function.

 

Application

TM-41X series measures air speed, temperature and humidity. It is ideal for spot measurements at air outlets on account of its 30mm vane. In addition to air speed and temperature, also measures air moisture and absolute pressure. In this way, air conditions can be reliably checked.

 

Features

• 30mm 6 plastics vane
• Light air response 0.4m/s
• Air flow calculate function.
• Max/Min/Avg and data hold.
• Memory capacity: 99 records.
• Memory recall function.30
• Backlight function.
• Absolute Pressure Sensor
• Humidity Sensor

Functions	TM-402 (Pr401T)	TM-403 (Pr401T)	TM-404 (Pr401T)
Velocity	●	●	●
Flow	●	●	●
99 Record	●	●	●
Temperature	●	●	●
Humidity		●	●
Pressure			●

 

Specifications

• Display : 42mm(W) x33mm(L) Monochrome LCD with backlight 
• Battery : 9 Volt battery.
• Battery Lift : Approx continuous used 100 hours. 
• Shutoff Rate Power : 3uA
• Operate Maximum Power : 25mA 
• Instrument dimensions : 130(L)x 56(W)x 38(H) mm. Weight : About 160g.
• Probe dimensions: 195(L) x47(W) x30(H) mm. 
• Cable length : 95cm. 
• Weight : About 100g. 

 
Electrical specifications 

Velocity
Unit	Range	Resolution	Accuracy
m/s	0.4~20	0.1	≤10m/s ±(2.0+0.5) >10m/s ±(2.5﹪+1)
Km/hr(Kph)	1.5~72	0.1	≤36Km/hr ±(2.0﹪+1.8) >36Km/hr ±(2.5﹪+3.6)
mph	0.9~44	0.1	≤22mph ±(2.0﹪+1.1) >22mph ±(2.5﹪+2.2)
Knots(kts)	0.8~38	0.1	≤19Knots ±(2.0﹪+1) >19Knots ±(2.5﹪+1.9)
ft/min(fpm)	79~4000	1	≤2000ft/min ±(2.0﹪+100) >2000ft/min ±(2.5﹪+200)
Beaufort	1~8	1	--
Air Flow Calculation
Unit	Range	Resolution	Accuracy
CMM	0~9999	1	--
CFM	0~9999	1	--
Temperature
Unit	Range	Resolution	Accuracy
°C	-20~60	0.1	±1℃
°F	-4~140	0.1	±1.8℉
Humidity
Unit	Range	Resolution	Accuracy
%RH	20~80	0.1	±3.5%RH
%RH	<20,>80	0.1	±5%RH
Absolute Pressure
Unit	Range	Resolution	Accuracy
hPa	350~1100	0.1	±2hPa
mmHg	263~825	0.1	±1.5mmHg
inHg	10.3~32	0.1	±0.1