Features: Brand new and high quality The product automatically recognizes and detects the current in both charging and discharging directions. When charging, the color of the current is green; when discharging, the color of the current is blue. Suitable for a variety of batteries: ternary batteries, lead-acid batteries, phosphate batteries, etc., as long as the battery is within the voltage measuring ranges. The shunt and screws are made from copper material, which has good electrical conductivity, low heat generation, and low power consumption. In the standby state, it will not consume too much battery power. Support Bluetooth-compatible connection mobile phone APP control, after downloading and installing the APP, through the built-in Bluetooth-compatible connection, and all functions can be set through the mobile phone APP. After configuring the relays, it can realize over-voltage protections, under-voltage protections, over-current protections, over-temperature protections, Low temperature protections and over-power protections(the delivery list does not include relays) The product has added a self-calibration function, and the current and capacity values can still remain accurate after long-time working. The product can accurately measure parameters such as voltage, current, battery capacity, power, power consumption, ambient temperature, battery life, charging time, and battery cumulative capacity. Specifications: Material:Plastic Type:KL110F/KL140F/KL160F Voltage measurement ranges:0-120V Voltage measurement ranges:10-80V Voltage resolution:0.01V Current measurement ranges:0~100A 0~400A 0~600A Temperature measurement ranges:-20-120℃ Capacity display ranges:0%~100% Power measurement ranges:0~72KW Power resolution:0.01W AH measurement ranges:0~9999.99AH Package Includes: 1 Set Battery Monitor note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.