For Testo Models 445, 645, 6740

• Pore size 100 µm
• Reliable sensor protection in high humidity and aggressive ambient conditions.
• Dirt-resistant PTFE

PTFE (Teflon) sintered filter Ø 12 mm not affected by condensation water-repellent resistant to corrosive substances.   Applications: compressed air measurements, high humidity range (continuous measurement), high flow velocities.

Custom built part numbers are non-returnable