Adjustable low powder sensor for the Frankford Arsenal X-10 Progressive Press, the sensor plugs into the X-10 smart tool head and triggers the audible and visual alarm built into the tool head.
 
The main sensor is universal to fit what ever brand powder drop you are using on your X-10 press like Mark 7, Dillon, Hornady etc. making it universal to other brand powder drops (when they are used on the X-10)
 
NOTE: This unit is universal to fit multiple brands of powder drops when those powder drops are used on the X-10 press only, the wiring only works with the X-10 tool head and will not work on other brand presses.