Portable LCD fish finder with LED back-lighting

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Amazon Price: $99.99 (as of August 19, 2018 5:35 am - Details). Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on the Amazon site at the time of purchase will apply to the purchase of this product.

Specification: 1. Display Display: Dot Matrix LCD Display Size: 50*45mm Display Dot Number: 128*96 Display Contrast: 10-100% Backlight: White LED Backlight 2. Sonar & Radio Depth Range: 2-120Ft/0.6-40M Wireless Operating Range: 180m (max) Sonar Frequency: 125KHZ Sonar Beam Angle: 90 degree Radio Frequency: 433.92 MHz Operational Temperature: From: -20 ~70Celsius 3. Power Supply: Mainframe: Lithium battery 3.7V Transducer: Polymer battery 3.7V