Features:  The product automatically recognizes and detects the current in both recharging and discharging directions. When recharging, the color of the current is green; when discharging, the color of the current is blue.  Suitable for a variety of batteries: ternary lithium batteries, lead-acid batteries, lithium phosphate batteries, etc., as long as the battery is within the voltage measuring ranges.  The shunt and screws are made of pure copper material, which has perfect electrical conductivity, low heat generation, and low power consumption. In the standby state, it will not consume too much battery power.  Support BT connection mobilephone APP control, after downloading and installing the APP, through the built-in BT connection, and all functions can be set through the mobilephone APP.  The product can be set with over-voltage, under-voltage, over-current, over-power, and external over-temperature protections. When the value is out of the protections value range, the output state of the instrument is turned off (need to be used with a relay) to avert damage to the electrical equipment. The protections recovery time and delay time can be set, which is suitable for various occasions.  The product has added a self-calibration function, and the current and capacity values can still remain accurate after long-time work.  Amp-hour, watt-hour, and time data can be cleared during the measurement process without affecting the another measurement. The voltage and current values can also be fine-tuned to ensure accurate capacity.  The product can be upgraded through the online firmware of the mobilephone, which increases the guarantee for the operation of the product.  The product can accurately measure parameters such as voltage, current, battery capacity, power, power consumption, ambient temperature, battery life, recharging time, and battery cumulative capacity.    Specifications:  Material: plastics  Type: KL110F/KL140F/KL160F (optional)  Sampling method: shunt  Voltage measurement ranges (External power supply): 0-120V  Voltage measurement ranges(Self-powered): 10-80V  Voltage resolution: 0.01V  Current measurement ranges：  KL110F：0~100A  KL140F：0~400A  KL160F：0~600A  Current resolution:  KL110F：0.01A  KL140F：0.1A  KL160F：0.1A  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  Capacity resolution: 0.001AH  Watt-hour measurement ranges: 0~9999.99kWH  Watt-hour accuracy: 0.001WH  Time measurement ranges: 0~999:59:59S  Time resolution: 1 second  BT communication distance: 10M  Voltage accuracy: ±2%+3 characters  Current accuracy: ±5%+10 characters  Sampling rate: 1 time / second  Measuring module power consumption: about 0.4W  Over power protections: 0-99999.99W  Over voltage protections：0~120V  Under voltage protections：0~120V  External over temperature protections：0-120℃  Protections recovery time: 0-99s  Enter standby time: 0-60s  Delay time setting: 0-99S  Package size:  KL110F: 195 * 145 * 60mm / 7.