The Observer 500 indoor/outdoor high-water alarm from Septic Products includes a NEMA 4X (watertight) polycarbonate enclosure rated for indoor or outdoor use, 360-degree red alarm light, alarm horn, alarm test and horn silence toggle switch, and a 6-foot 120-volt AC power cord. External cord grips and a large terminal block allow for easy installation. A mechanical float with a 15-foot cord is included standard, with other cord lengths, as well as mercury floats, also available. 419-282-5933, www.septicproducts.com.