This product is a multi-function Counter + Timer. The main function of this product is to measure the voltage and current and display it in real-time. At the same time, in order to meet the diversified needs of customers, the functions of voltage and current correction, charging and discharging time and charging and discharging capacity control, battery overcharging and discharging control, and so on are added. Complete protection, easy to use, friendly interface. Features: Multi-function test instrument Under-voltage protection Over-voltage protection Over-current protection Over-temperature protection Timeout protection Overcapacity protection Sound and light alarms High precision LCD HD display Multiple parameters are displayed simultaneously Support power-down memory function Display Input Voltage/Current/Power Discharging time/Discharge capacity/Temperature Package Includes: 1 x LIRRD LDP6-T/C Multi-Functional Counter + Timer