Instrumentation
Air Velocity Testing
Digital Thermo-Anemometer     Series 471 Mini-Vane Thermo-Anemometer     MVT
Four Field Selectable Ranges from 
Display Air Flow, Air Velocity and 
500 to 15,000 FPM. 471 are versatile  Temperature, Telescoping Mini-Vane, 
dual function instruments that quickly  RS232 Output. The meter uses a 1/2"  
and easily measure air velocity in four  diameter metal telescoping antenna 
field selectable ranges, in either feet  sensor to detect air flows up to 
per minute or meters per second, plus  2358 ft/min and temperatures to 
air temperature in °F or °C. High  176°F. High accuracy is ensured with 
contrast LCD display shows both  the low friction ball bearing mini-vane. 
range selected and present velocity.  9V battery and protective rubber .
Vane Thermo-Anemometer       VT140 Integral Vane Thermo-Anemometer   VT120
Simultaneously Displays Air Velocity 
Large 1-1/4" Dual Display, One Hand 
and Temperature, RS232 Output . Operation. User-selectable air velocity 
Microprocessor-based unit provides  ranges include ft/min, m/sec, mph, 
fast, reliable air velocity measurement  knots, and km/hr. Built-in thermistor 
in five different scales. For airflow  records ambient temperature in °F/°C. 
measurements in heating, ventilation,  For air duct measurement and analys, 
and air conditioning systems, air duct  fume hood analysis, ionizer flow 
analysis, wind tunnel studies, or  output monitoring, positive pressure 
monitoring of process air. reading in clean rooms, ...