The Boom Slang Pin Sensor attaches to a Lee decapping die or other "pin up" dies, like the "Judge" and will shut down the press if the decapping pin is pushed up due to a blockage.
This plugs into the yellow port on the wiring harness of an AmmoBot. It can be used on a Mark 7 with an ATMC cable available separately.
*NOTE: IF you use a caliber specific die, you will either need to bend the arm on the sensor to meet the decap pin when it is up or use the universal pin (which is substantially longer) instead of the included caliber specific pin. The only difference between the pins is the overall length.