Specification :

The versatile Fishfinder 400C has a super bright, high resolution 4" ( 10.16 cm) display and is great for finding fish in both freshwater and saltwater.

Use in Freshwater and Saltwater

The 400C is available with a choice of dual beam or dual frequency transducers, so it’ s readily adaptable for both freshwater and saltwater fishing. The 400 watt ( RMS) dual beam version offers a wide fish-finding cone and reaches depths of 900 ft ( 274.32 m) . With the 500 watt ( RMS) dual frequency transducer, you can reach a depth of 1, 500 ft ( 457.2 m) .