SmartSense Bluetooth Gas Bottle Level Monitor

Garmin Striker Cast Castable Sonar GPS

Smart Fishing Rod Sensor

Anglr Tracker, Susquehanna Fishing Tackle

iBobber Wireless Bluetooth Smart Fish Finder for iOS and Android Devices & Dr. Meter PS01 110lb/50kg Electronic Balance Digital Fishing Postal Hanging Hook Scale (Bundle) : Electronics

And

New Portable Fish Finder Bluetooth Wireless Echo Sounder Sonar Sensor Depth Fishfinder for Lake Sea Fishing IOS & Android

Abu Garcia introduces fishing rod with Bluetooth technology - Bassmaster

Hot wire probe with Bluetooth® including temperature and humidity sensor

Minn Kota - Heading Sensor Bluetooth

Wireless Sonar Fish Finder USB Rechargeable Bluetooth-Compatible