The MH-3 Flowmeter is calibrated for use with the Oxymizer™ cannula for flight up to 18,000 ft. The MH-4 has two altitude flow scales. The left (compressed) scale is calibrated for the Oxymizer™ cannula and is limited to flight of 18,000 ft.and below. The right scale is calibrated for a standard cannula or facemask up to 25,000 ft.
Both are available in either Thermo Plastic or Plated Brass CPC type male fittings.
The Thermo Plastic fitting comes with 1 meter of PVC vinyl tubing and is standard equipment on all XCP systems.
The Brass Plated metal fitting comes with 1 meter of Poly Tubing (Tygon® type) and is used where higher system outlet pressures are encountered, such as aircraft with built in systems.