Evolution system of PS-500C!Easy to see, 5-inch wide screen.Set contents?Main body (with cover)?Transducer (TD04A)?Transom bracket?8 AA batteries.Specification : Type: 5-inch wide color LCD.Display screen: Vertical Display dots: 272 x 480.Power supply voltage: DC11-14V.Power consumption/current: About 3W 0.3A/12V.Frequency: 200kHz.Output: 100W.Water depth display range:maximum/0 to 150 m, minimum/0 to 3 m.*The water depth display range does not mean sounding capability.