Review on Garmin Striker Plus 4: 4-inch Screen with Dual-Beam Transducer & Protective Cover (010-01870-00) by Michael Radhakrishnan

It has a much larger screen than I expected. In fact, I've used the chart/sonar split screen a lot and can see perfectly. Worked great for me on a recent fishing trip. Finding and catching fish has really made a big difference for me. I ran it on EXP1270 Expertpower 12v 7a (also Amazon Prime) batteries and got 31 hours of continuous use on each battery. The fully charged battery is 13.5V, and the device turns off when the battery drops below 11.5V (the device displays the battery voltage on the screen). I love it - and I'm a big Humminbird fan. PS It's definitely rainproof!