The Liberty ALM-2W Outdoor Alarm is designed to be used with sump, effluent, and sewage pumps. It alerts the operator of deviations from normal pump conditions. Common abnormal conditions are when the liquid is about to exceed the limit or has already exceeded the standard limit. This Liberty ALM-2W Outdoor Alarm utilizes a red alarm beacon. It includes auxiliary contacts. The alarm horn sounds at 82 decibels. The voltage needed to run this alarm is 115V single phase. It has a 9V battery back-up should there be any outages. It has a water-tight seal that meets Type 3R standards. It features a test or a silence switch. It has a thermoplastic enclosure. It comes with a 20' float cord. It boasts an easier field wiring with a removable cover. More details are available in the specification sheets. The Liberty ALM-2W Outdoor Alarm is recognized for meeting the required environmental performance standards. Liberty, the company that makes and innovates high quality pumps is relied on by hundreds of professional contractors each day. Liberty has been cited as one of Rochester's Top 100 Companies for twelve years.