Review on Venterior Portable Fish Finder with Wireless Sonar Sensor – Rechargeable, Enhanced Performance Depth Locator with Fish Size, Water Temperature, Bottom Contour & Color LCD Display by Dhoal Shankar

Bought one of these and love it! Keep it dry: Water on the screen acts like condensation in the screen behind each drop, blocking the depth view. Also, it fails completely and permanently in light rain, which was my fault. I received a replacement unit and it works great in a plastic case. Determines the depth precisely. I use it in my kayak to find cliffs. A large mouth striped bass was recently caught with this device at depths of 22 to 30 feet. photos provided. Works better than devices that are 2 times more expensive. For example, it doesn't have an antenna to break like a similar product I tried from another manufacturer. Battery life is good. About 3-4 hours later I bought a cheap portable charger which added a full day to the life of the sonar. The transponder is separate and the battery lasts longer, also rechargeable.