Description: The watt meter is designed to be safe in systems using less than 60V and carrying currents up to 130A Prevent peak currents from battery damage, to control motors, motors, wiring and connectors Check sufficient operating voltage under load Set cut-off voltages, check battery capacity and health Battery cell balance Confirm correct operation of the charger Detect the load and the actual operating current, to make sure if you need UBCs from 4.8-60V Measure (L*W*T): 8.3cm x 4.2cm x 2.4cm/3.27" x 1.65" x 0.94" (Approx.) Measures Range:0 - 130A, Resolution 0.01A0 - 60V, Resolution 0.01V0 - 6554W, Resolution 0.1W0 - 65Ah, Resolution 0.001Ah0 - 6554Wh, Resolution 0.1WhNote: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, thank you! Package Included:1 x 130A Wattmeter Meter Power Analyzer