This sonar sensor is a great accessory for your fish finder.

Features:
Wireless sonar sensor for fish finders.
45m depth .
90-degree beam angle, 125KHz sonar frequency.
Durable construction with watertight seal cover and seal ring.
Runs on a replaceable CR2032 battery.
Special holes allow you to tie your fishing lie onto it, easy to cast.

Note:
D refers to Depth, D+T refers to Depth and Temerature.
D transducer is for basic fish finders: FFW1108-1, FFCW1108-1
D+T transducer is for most of fish finders, such as FFW718, FF518.

Specifications:
Material:
Model: D / D+T (optional)
Depth : 45m / 147ft
Beam Angle: 90°
Sonar Frequency: 125KHz
Dimension: 7.8 * 5.5cm / 3.1 * 2.2in
Weight: 45g / 1.6oz

Package List:
1 * Sonar Sensor for Fish Finder