The FATHOM MK2.5 CCR Cell Checker allows divers to test their sensors for linearity and current limiting. The cell checker can also be used as a convenient way to calibrate while using very little oxygen or to calibrate the HUD at altitude.
Requires an IP gauge. Either use your own or select the FATHOM digital IP gauge. The FATHOM 0-300 psi / 0-20 bar digital gauge can be used to check any regulator’s intermediate pressure via an inflator hose.
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