Durable insulated shell provides protection and easy installation for reliable use in a variety of environments. 2.4inch definition color display with silicone buttons for clear readouts and responsive control. Broad battery compatibility: suitable for ternary lithium batteries, leadacid batteries, lithium iron phosphate batteries, and other chemistries. Measures voltage from 0 to 120 V and capacity from 0 to 9999.99 AH, enabling quick assessment of battery packs. Practical and versatile for workshop and field use, enabling quick checks during assembly, maintenance, and troubleshooting. Use scenarios Manufacturing and quality control: quickly verify voltage and capacity of battery packs during production and testing to ensure consistency. Onsite battery maintenance: inspect solar storage systems, electric vehicles, power tools, and other field applications to assess remaining capacity and voltage levels. DIY and hobby projects: test and evaluate homebuilt or custom battery packs for electronics, backup power, or smallscale energy storage.