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 | Humminbird RF40-B Smartcast Remote Sensor | | Product Description | RF40-B Features:
- Ultra-wide 90 degree sonar beam.
- Fully waterproof.
- Typically lasts 400 hours of in-the-water usage.
- Wet Switch™ technology maximizes battery life by automatically shutting down when Remote Sonar Sensor is out of the water.
- Depth capability of 100ft.
- Operating frequency of 115 kHz.
The "B" Remote Sonar Sensor will allow you to fish in close proximity to an "A" model sensor (the type of sensor that originally came with your SMARTCAST Wireless Fishfinder) with reduced signal interference.
Simply set your display unit to Channel B and start fishing.
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Lake Powell Marine has been online and processing orders since 2002.
***Lake Powell Marine Electronics currently holds a perfect 5-Star Customer Rating on Yahoo! Shopping Network.

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