Specifications：

Range of setting: 5～20cmH20(±2cmH20)

Connector: 30mm ID

Material: Polycarbonate for all hard plastic.(up to 121 ℃)

Silicone for valve and grommet

Stainless steel for spring,screw and shaft

Operating temperature: -18℃～+50℃

Storage Temperature: -40℃～+60℃