Throw the Deeper Smart Sonar PRO+ castable sonar unit into the water, and watch tracked fish on your smartphone. A Wi-Fi connection lets you view sonar images on your mobile device as the echo sounder floats. With an internal GPS, this bottom-mapping Deeper Smart Sonar PRO+ castable sonar unit provides information essential to making your fishing day a success.
It works good with my Nexus 7 tablet most of the time; I had to have extra battery pack if running longer than an hour. Some times the app reboots for no apparent reasons. Recent upgrade makes me loose previous recording map history. Sometime it detects false fishes due to air bubbles or on the thermal-cline. Overall it shows the general area where fishes stays and the depth indicator helps. The surface temperature sensor is ok.