The Smart Battery Monitor?s unrivaled accuracy eliminates guess work when tracking battery levels on the go. Connected via a rock-solid Bluetooth connection, the user-friendly RedVision app offers easy navigation and precision information at your fingertips including state of charge, charge remaining and charging current. DIY friendly, the Smart Battery Monitor integrates easily with existing 12V systems. Compatible with all common 12V battery types and capable of handling currents up to 500A, the Smart Battery Monitor is the ultimate choice for reliable and accurate battery monitoring.