12-Volt Battery Monitoring: Monitors voltage level and state of charge of any 12-volt battery for power management LED Voltage Display: Features LED screen that gives current voltage of battery being tested for precise readings State of Charge Indicators: Display shows battery status as 0, 1/3, 2/3, or Fully Charged for easy interpretation Simple Touch Operation: Easy to use by touching positive and negative leads to battery terminals—no complex setup required Compact Portable Design: Compact and durable design for easy storage and long-lasting use in boat or workshop