The Double-Alpha Infra-Red Low Powder Sensor is an efficient, high-tech solution to a problem every reloader has encountered: Making sure to fill that powder hopper in time, before you accidently load empty cases without powder. Unlike other solutions on the market, the DAA Infra-Red Low Powder Sensor can be used on all powder hoppers, not just the Dillon hopper. And It allows the user to determine at what level of powder the alarm will be triggered. Simply position the device at the height of your choosing, and when the powder level drops below the bottom of the IR sensors - the alarm will sound.The Alarm signal is a bright red LED light as well as a loud beeping sound. Impossible to miss even when reloading with hearing protection. The bright red light immediately draws your attention to the problem, so that you can top up your hopper before the powder level drops lower than you would like. (many precision reloaders are wary about allowing the powder level to drop lower than abou...