Simarine's Pico battery monitor can monitor six battery banks and uses Simarine's Real Time Battery Health algorithm to deliver metrics. Additionally, Pico can monitor 14 holding tanks and 20 current sensors. The unit has Wi-Fi connectivity, allowing it to be wirelessly networked with and controlled by a smartphone running Pico's app (Android- or iOS-compatible). The 3.5-inch monitor's high-resolution LCD screen uses in-plane switching technology to ensure wide viewing angles and sunlight readability. Buy here.