Peron's Sea Snake (PSS) - Primer Stack Sensor from Immortobot.
The PSS detects the level of the primers in the 1050/1100 stack and triggers automated presses to stop when the level reaches zero.
This works for all dillon based automated presses (e.g. Ammobot, Mark 7).
The switch needs 1oz of weight to trigger. We suggest a 45ACP case be placed on the top of the primer rod to provide consistent weight to trigger the switch.