Fangrui Product Details Remote Real-time Monitoring: Embrace The Future With Our Wifi-enabled Coulomb Meter, Allowing You To Monitor Battery Status From Anywhere. For Outdoor Adventures, Home Use, And More, Ensuring Youre Caught Off Guard By Power Shortages Universal Compatibility: Whether Its A Lead-acid, Ternary Lithium, Or Lithium Iron Phosphate Battery, Our Device Is Compatible As Long As It Falls Within The Voltage Range. It Automatically Identifies And Monitors Currents In Both Charging And Discharging Modes, Displaying Net Values For Simultaneous Activities Enhanced Safety Features: Equipped With A Built-in Buzzer For Intelligent Monitoring, It Alerts You With A Sound And Popup Reminder When Low Capacity Or Voltage Is Detected, Enhancing Safety And Reliability Advanced Mobile App: Control And Monitor With Ease Using Our Redesigned App Interface, Offering Dynamic Charging Effects And Comprehensive Data Display. Configure Settings And Analyze Data Through A User-friendly Platform Reliable Performance: Built-i