VAC8610F2.4-inch Color Screen Wireless Voltage Current Meters Coulomb Meter Battery Management System 100V 50A            Open-box inspection:    As you get a new VAC8610F multifunctional voltage ammeter, it is recommended that you follow the following steps to check the instrument.    1.Check for damage caused by transportation.    If the packing carton or bubble bag protection pad is found to be seriously damaged, please keep it until the whole machine and accessories pass the test.    2.Check that the items in the packing box are complete.    The contents of the packing box are described below. If the content does not match or the instrument is damaged, please contact the dealer or our company.    Host :1 VAC8610F( including display head and measuring board     Annex: User Manual (pdf Edition)1    3. check the whole machine.    If the appearance of the instrument is found to be damaged, the instrument is not working properly, or fails to pass the performance test, please contact the dealer or our company.    Chapter I Overview:    I. Introduction to the Instrument    VAC8610F is a multifunctional instrument based on 2.4G wireless data transmission technology, which can display voltage, current, power, capacity, energy, temperature, running time and other physical parameters in real time. battery charging and discharge management, overvoltage, undervoltage, overcurrent protection and buzzer alarm can be realized by two relay interfaces reserved. And the instrument uses 2.4 inch color liquid crystal as the display, the display data is more comprehensive, clear, easy to observe, reserved communication interface, easy to secondary development.    II.Main characteristics    1. wireless data transmission, to avoid the display and detection module between the complex wiring interference, while the wiring is more convenient;    2. hall sensor to achieve non-contact detection of current without disconnecting wire, safe, reliable, convenient;    3. voltage, current, power, temperature (optional), capacity, percentage of residual capacity, running time display at the same time;    4. charging and discharging double relay interface ,5 relay working modes can realize automatic disconnection and automatic closure of charge and discharge       5. has charging overvoltage, discharge undervoltage, charging overcurrent, discharge overcurrent protection, and with buzzer alarm function;         6. with power off memory function, can record the number of AH and WH before power off;         7. the percentage progress bar when charging switch to color flow light display, enhance the display effect;         8. with voltage, current, temperature waveform display function;          9.