testo 521
testo 521-1
testo 521-2 (0 to 100hPa 0.2% acc) battery and calibration protocol included Multi-point and timed mean calculation Online not buyable Ordernumber: 0560 5211
testo 521-2
testo 521-2 (0 to 100hPa 0.2% acc) battery and calibration protocol included Multi-point and timed mean calculation Online not buyable ...
testo 521-3
testo 521-3 (0 to 2.5hPa) battery and calibration protocol included Temp. compensated differential pressure sensor built into instrument Calculation of velocity and volume flow via Pitot tube measurement ...
