Features DUAL PORTS: The battery monitor has USB and Type C ports to measure the battery voltage and remaining CHARGES while charging other devices, useful and practical TECHNICAL PARAMETERS: The operating voltage of the battery monitor is DC8‑30V, and the measuring voltage is DC8‑30V, support the voltage and remaining power measurement of lithium batteries, acid batteries, and lithium iron batteries POWER OFF MEMORY: Battery monitor with power off memory function. Once the proper mode is set, the settings are retained even after a power outage. No reconfiguration is required for subsequent use, easy to operate PREVENT REVERSE POLARITY AND LOW VOLTAGE FLASHING ALARM: The battery monitor provide prevent reverse polarity. When the measured voltage is low, the screen flash to alert user VERSATILE APPLICATIONS: Battery monitor is suitable for installation in carts, cars, RVS, motorcycles, ships and a variety of other Settings to measure battery voltage and remaining capacity. Also suitable for battery capacity and voltage testing in high and low voltage distribution cabinets, display cabinets, photovoltaic inverters, assembly line testing, electronic maintenance, DIY electronic projects and other fields Specification: Item Type: Battery Monitor Model: 6140 Material: PC Voltage Detection Range: DC8-30V Operating Current: Display Method: LCD screen Display Screen Color: White USB Output: QC2.0, QC3.0, Maximum Output: 18W(5V 3.4A, 9V 2A, 12V 1.5A) Type C Output: QC2.0, QC3.0, Maximum Output: 18W(5V 3.1A, 7V 2.4A, 9V 2A, 12V 1.5A) Power Off Memory: After setting the parameters, there is no need to reset when the power is off and then back on packing list: 1 x Battery Monitor 1 x Connection Cable Package List 1 x Battery Monitor 1 x Connection Cable