The IPD-34-171 is a Liberty IP-Series intelligent duplex control panel. It replaces up to four wide-angle float switches with a compact floatless level sensor (4" to 99" range, 10' vent tube, 20' cord) that reports tank level in inches or centimeters on a color LCD touchscreen, where pump on/off and alarm setpoints are programmed without opening the tank. A redundant alarm float switch ships standard for backup. It has a NEMA 4X weatherproof enclosure, circuit breakers, power relays (definite-purpose contactors above 15A), a red alarm beacon with an 83-85 dB horn and test/normal/silence switch, auxiliary contacts, and is field convertible between demand-dose and timed-dose operation. Wired for three-phase power at 208-240-480V, rated 4.0-6.3 full load amps (must match the pump). Shipping weight approximately 25 lb.