The Drum Alarm is a battery-powered liquid level alarm that monitors chemical containers and drums. When the drum is empty, it beeps and flashes. The liquid feed pipe is attached to the alarm so it can't be forgotten or turned off. The alarm is rugged, built for corrosive environments and rough handling. Includes a built-in flow indicator and a particle screen to protect pumps. Designed to simply connect to the feed line and drop it in a drum. Available in many sizes. Chemical drums have run empty for the last time!