Our website uses cookies. They help us understand how customers use our website so we can give you the best experience possible. By continuing to browse this site or choosing to close this message, you give consent for cookies to be used. The cookies are not used for advertising. This applies to visitors from EU.
A battery-operated pneumatically controlled device which activates an audio alarm for about fifteen seconds when oxygen pressure in the system falls to approximately 4.2kg/cm2.