Instrumentation
Air Velocity Testing
LGM 1 - complete air speed measuring device LUTEF-M 4010 Air speed - temperature-humidity 
This air speed measuring device with
measuring device for 
digital display features a  ventilation and air 
microprocessor for connection to  conditioning applications
turbine probes. Range: - 5,0 to + 65,0°C
Measuring ranges: Accuracy: ± 1,0°C; Resolution: 0,6°C
Measuring 0,20 to 40,00 m/s Air speed (turbine, PT 100)
probe 70: (35 to 7300 ft/min) Power supply: 9 V battery
Measuring 0,30 to 35,00 m/s Battery life: approx. 40 hours
Air Velocity Meter Series 400 Electronic Balometer             APM151
Measure both pressure and air  Measures volumetric flow rate and 
velocity. Read the red figures directly  temperature,stores upto 100Readings.
in feet per minute of velocity - from  APM151directly measures air flow on 
400 to 10,000 fpm No conversion  its large LCD display Download data 
tables needed for air at standard  to your computer via APM151C 
conditions. Read the black figures in  Interface Cable (sold separately). 
inches of water column air pressure - Eliminating time-consuming 
from 0 to 10" w.c. For balancing  calculations, this instrument utilizes 
contractor or industrial plant. thermal anemometry technology .