EXPLORER 438 Installation And Operation Manual Brandname: NorthStar Category: Fish Finder Total Pages: 32 Table of contents Danger3Contents4Important51Introduction62BasicOperation8GainAdjustment9TheSetupMenuAndOptions10Language11Warning12ClearUsed133-5SetupLogs143-7SetupUnits15Temperature16StrengthOfEchoes17Shadows18StationaryBoat19FishArches204-4Range215-1SonarDisplay225-4SonarA-ScopeDisplay235-6DataDisplay24FlushMounting25AutoPowerOption26AppendixA-Specifications27