Fish can be pretty finicky or picky when it comes to being ready to be caught. The right temperature is key some days. This sensor will measure just that. Providing digital temperature readings, as you glide through the water, you can sensor your fishing trip according to your fish&';s mobility. Secure and ready to ride the currents and waves, You can ensure you catch the big one next time. WARNING: This product can expose you to chemicals including Lead and Lead Compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to: www.P65Warnings.ca.gov Single/Dual Beam 20/60Adeg 200/83 kHz Built in temperature 20&'; of Cable More secure, especially at high force of waves Improved running angle Optional lock down screw to override the kick up