Description [9-in-1 Multifunctional Meter] Tests battery voltage, discharge current, discharge power, discharge capacity, internal resistance, capacity, energy, energy consumption, and time. FCC and CE certified. [Measurement Range] Voltage test range: DC 0-200V; Current test range: 0-100A; Discharge: 0-20000W; Discharge frame: 0-1000; Internal resistance: 0-999mΩ; Capacity: 0-1000AH; SoC; Energy: 0-9999KWH; Duration: 0-999h. [LCD Screen & Backlight] Blue film LCD screen, 360° viewing angle, displays nine groups of measurement data simultaneously. Backlight ensures clear visibility day and night, enhancing the visual experience while saving energy. [Wide Application] High-precision voltage conversion role, the welding process is firm and safe. Data is accurate, efficient, and stable. Used for solar systems/industrial assembly lines/cars/RVs, etc., all types of batteries, pipeline tests, electrical DC devices. Note: The connection order must not be wrong, the load must not exceed the rated power, the module is suitable for indoor use, not for outdoor use. [Screwless Design & Material] The plug-in meter saves time and effort, requiring no screws for easy installation. Its sleek design allows for placement in various locations. The reinforced nylon outer shell is durable and impact-resistant. Material: Plastic + Metal Color: Black Package Contents: 1 x PZEM015 Battery Tester 1 x 100A Shunt 1 x Cable Tie Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.