Description: With the RF45 Advanced Remote Sonar Sensor, you get even greater performance from your SmartCast wireless remote sonar: great depth capability, water surface temperature readings; longer in water use, programmable two-channel operation so you can fish with a buddy without crossing signals and even a flashing, internal light for night fishing that you can switch on or off. Green Sensor for use in the US and Canada only.
For Use With: RF15, RF25, RF35 Will work as replacement sensor for the RF10, RF20 and RF30 but will not give temperature or extended depth performance on these models.
The sensor weighs 20gr. And the base has two holes to pass the fishing line.