Amazon.com: Dwyer 475-1-FM Digital Manometer + Protective Rubber Boot. Pos, Neg, Diff Pressure. Range 0 to 20.00" w.c. (4.982 kPa). Air or Natural Gas. Intrinsically Safe. Large LCD with Backlight. : Industrial & Scientific
Wat is een manometer? En hoe werkt het? - Kluzzen.nl