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This will allow you to use the RCA plug on the P3 reaming unit to connect to the Mark 7 autodrive.  Below is from website.

The Immortal Arms ™ ATMC allows the use of the Immortal Arms ™ Low Primer, Low Powder, Powder Check, Boomslang and other RCA connector sensors on a Mark 7 drive.

The Immortal Arms sensors can be shut off via the tablet and provide the same message that their sensors provide when activated (with the exception of the Low Powder, as they don’t have one. When plugged into the Powder Check port, it provides that message when activated).

Additional information

Weight 1 lbs
Dimensions 3 × 3 in


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