The sampler comes with a protective shell that is easy to install and provides insulation protection. 2.4-inch high-definition color display with silicone buttons for clear, reliable operation. Voltage measurement range: 0 to 120 V Capacity measurement range: 0 to 9999.99 Ah Compatible with a range of battery types, including ternary lithium batteries, lead-acid batteries, and lithium iron phosphate (LiFePO4) batteries. Key benefits - Easy and safe installation with insulation protection - Clear, colorful display and tactile silicone buttons for quick readings - Wide voltage and large-capacity measurement for versatile use - Broad battery compatibility suitable for different chemistries and configurations Practical use scenarios - On-site monitoring of a battery pack in electric vehicles or e-bikes during charging and discharging - Home or workshop energy storage systems using lead-acid or LiFePO4 batteries - Lab or R&D testing to evaluate voltage and capacity across various battery chemistries This device provides straightforward setup, reliable measurements, and compatibility across common battery types, making it suitable for both professional and hobbyist applications.