Similar to #44070, this unit utilizes a 3-phase sensor disk which progressively changes shades of blue as the humidity increases. Humidity levels of 20%, 40% and 60% are detected; desiccants should be renewed as the 40% segment begins to fade. Since this model does not sense carbon monoxide, use this device where the chance of carbon monoxide in the intake air is low; also use it to maintain very low dew points in air used for cold water diving or deep TEK diving. Replacement sensor disk: Order #44076.

Flow/pressure rating - 50 cfm to 5,000 psi.

Connections - 1/4 NPTF bottom ports.