Buy Today DILLON LOW POWDER SENSOR, LIGHT/BUZZER WHEN < 1000g

Provides an audible and visual reminder when its time to refill your powder reservoir. When the powder level drops to about 1,000 grains remaining in the reservoir, a buzzer will sound and a bright red LED will light. Designed to fit all Dillon powder measures. Made of clear polycarbonate, it simple replaces the die-cast metal lid supplied with the measure, and operates on two AAA batteries (included).