This is a multi-function meter that can display voltage, real-time current, real-time power, remaining capacity, and usage time in real-time. The meter uses a 2.4 inch color LCD display that shows comprehensive, clear, and easy-to-read data. This meter is perfect for applications that require output voltage and current monitoring, as well as battery charging and discharging. Features: PVC Housing: Adopting industrial-grade ABS with impact resistance, high-temperature resistance, and other characteristics, is safer and more reliable. Silicone buttons design, comfortable to use. Accurate Measurement: 32-bit main control chip, real-time capacity detection, accurate data, online fine-tuning of voltage and current values, endurance time display support. Bidirectional Current Detection: The detection of charging and discharging users can easily detect bidirectional current, without changing the wiring direction. Memory Function: It can memorize the ampere-hour (AH) before the power failure. The ampere-hour (AH) can be filled or cleared with one key, which does not affect the direct charging and discharging measurement. Version with Base: The diverters and screws are made of pure copper materials with high conductivity and low heat generation. Its own low power consumption, standby state will not consume too much battery power. The small sealing springs are all made of pure copper to ensure more accurate sampling accuracy. It is a base version with mounting fixing holes on both sides, easy to install and fix. Wide Applications: Perfect for applications that require monitoring of output voltage and current, as well as battery charging and discharging. Suitable for RV power monitoring, electric bicycle monitoring, car battery power monitoring, battery testing, photovoltaic system testing, powersupply testing, etc. Waterproof Slide Cover (Optional): Waterproof transparent slide cover for the display (optional parts), easy to disassemble and install, can achieve the front of the instrument display waterproof, dustproof effect. Specifications: Name: Coulometer Set Material: PVC Type: 100A diverter, 300A diverter, 500A diverter, 100A diverter+lid+shielded wire, 300A diverter+lid+shielded wire, 500A diverter+lid+shielded wire (optional) Display: LCD display Voltage measurement ranges: 8-100V Current measurement ranges: 0.02-100A (100A diverter); 0.06-300A (300A diverter); 0.2-500A(500A diverter) Capacity measurement ranges: 0.1AH-99999AH Power value: 50KW Accuracy of voltage: 1%+2words Accuracy of current: 0.5%+2words Communication baud rate: 9600bps Measurement rate: 20 times/sec Item size: Display: 86 * 53 * 17mm / 3.39 * 2.09 * 0.67in 100A diverter with base: 65 * 34 * 34mm / 2.56 * 1.34 * 1.34in 300A diverter with base: 84 * 38 * 45mm / 3.31 * 1.50 * 1.77in 500A diverter with base: 84 * 38 * 45mm / 3.31 * 1.50 * 1.77in Package size: 160 * 160 * 50mm / 6.30 * 6.30 * 1.97in Package weight: 100A diverter: 285g / 10.05ounce 300A diverter: 395g / 13.93ounce 500A diverter: 435g / 15.34ounce 100A diverter+lid+shielded wire: 365g / 12.87ounce 300A diverter+lid+shielded wire: 475g / 16.76ounce 500A diverter+lid+shielded wire: 520g / 18.34ounce Packing List (100A/300A/500A diverter): 1 * Display 1 * Diverter with Base 1 * 5Pin Cable 1 * 1m Cable 2 * Copper Lug 1 * Wrench OR Packing List (100A/300A/500A diverter+lid+shielded wire): 1 * Display 1 * Diverter with Base 1 * Shielded Wire 1 * Display Lid 1 * 5Pin Cable 1 * 1m Cable 2 * Copper Lug 1 * Wrench