Provides 8 electrical readings: Automatically detects and continuously displays realtime Current (A), Voltage (V), Watts (W), Amphours (Ah), Watthours (Wh), Peak Amps (Ap), Minimum Volts (Vm), and Peak Watts (Wp). An alarm function is included: when the current exceeds 150 A, the current display flashes to alert. Digital LCD screen display: The easy to read LCD provides clear digital readings. After connection, the wattmeter continuously presents real time amperes, volts, and watts. precision: 0150 A range with 0.01 A resolution. 060 V range with 0.01 V resolution. 06554 W range with 0.1 W resolution. 065 Ah range with 0.001 Ah resolution. 06554 Wh range with 0.01 Wh resolution. Universal battery watt monitor: Wide working current input range 0150 A; voltage input range DC 0 V60 V. Compatible with 12 V, 24 V, 36 V, 48 V battery bank systems. Applications and scenarios: Off grid solar setups: monitor battery charge/discharge and overall system performance to optimize energy use. Recreational vehicles and boats: track real time load, prevent overload, and protect electrical systems during travel. Backup power and portable power stations: observe energy consumption and remaining capacity to manage runtime effectively.