Lyman Powder Check Alarm Die 101-1287

The Mark 7
Powder Check Alarm will sound an audible alarm if a grossly incorrect powder level is detected inside the case. A must-have for people who want full confidence that every round produced has powder. Includes inserts for both pistol and rifle applications. - Designed to work with any manual press. Not recommended for automated applications due to the sensor not being able to stop the press.