The Little Giant 513265 3121W611H17A Simplex Alarm System is used for the control of alarm functions and pump motors in both indoor and outdoor applications of simplex pumping systems. This alarm system will warn you of a failing pump or a clogged line, causing liquid to rise in the septic tank. It includes a control panel with an audible alarm, a red alarm beacon, and a silence switch. This Little Giant 513265 3121W611H17A Simplex Alarm System has three floats; each one is intended for turning the pump on or off for high water. Each float comes with 20' power cords. This alarm can run at 208V and 240V three phase. It has a rating of 13-18 amps. It boasts its HOA switch that allows hand, off, or auto operations. The Little Giant 513265 3121W611H17A Simplex Alarm System proudly bears the UL and the C-UL marks and is recognized for meeting the required environmental performance standards. Little Giant and its parent company, Franklin Electric, have been making pumps for over 70 years. The quality, durability and dependability of their products have made them a world leader in pumps of virtually every variety.