The battery voltage monitoring display is an electronic device that integrates voltage signal acquisition, processing, analysis, and visual display functions. It is mainly used for balancing the voltage of series-connected lithium-ion battery packs, such as NCM/LFP/LTO. Features a 2.4-inch large display, showing real-time single cell voltage and total voltage. High reliability, multiple protection measures, and longer lifespan. Heat-, dustproof, waterproof, -, leak-proof, aging-, shock-, and impact-. Applicable battery series: 8S Applicable battery type: NCM/LFP/LTO Ambient temperature: -10C-60C work voltage: 0.3V-24V/1-4.5V Single cell voltage range: 0.1-6V Measurement range: 1mV/3mV Connector: PH2.0-9P Color: Black Material: plastic Package Contents: 1 x Battery Voltage Acquosition Display 1 x cable (random color, no specified color accepted) Only the above package content, other products are not included. Note: Light reflection 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.