Quick view Matson Matson Bluetooth Battery Monitor MA98415 - Bluetooth Wireless Technology Compare MSRP: $86.00 Matson Battery Monitor MA98415Bluetooth Wireless TechnologyMonitor multiple batteries, as well as the cranking system and charging system of a vehicle. The MA98415 can be used to monitor up to 4 stand-alone 12V batteries, or the combined pack voltage, up... Add to Cart Add to Cart Add to Wish List Add to My Wish List Create New Wish List