Testo 425 Digital Hot Wire AnemometerThe Testo 512 1 Differential pressure measurement is fast, easy, and precise and measures pressures up to 200 hPa. In practical use, it convinces with its flexibility and variety of applications. Checking the gas pressure on burners by measuring gas flow pressure and static gas pressure is just as quick and precise as checking filters and Pitot tube measurements in the ventilation duct. The position independent differential pressure sensor ensures