HST-DFSBL 50/200kHz Transducer Navico 7-PinProduct details The HST DFSBL is a 50 200 kHz transom mount Skimmer transducer with a built in temp sensor. Key Features 50 kHz with 29 beam width 200 kHz with 12 beam width Up to 900 m (3000 ft) range at 50 kHz 1 internal broadband ceramic Transom mounted with plastic housing Suitable for any hull Ideal for outboards and I O vessels up to 8 m (25 ft) in length Recommended for use with the SonarHub sounder module, Simrad NSS evo2 & NSS sport