Feature: 1. SAFE HALL SENSOR: The Hall sensor is used to collect current, no need to disconnect the wire, and the wiring is convenient and safe 2. 2.4IN COLOR SCREEN: The monitor adopts a 2.4in true color screen display, which can display comprehensive data, various styles, and support language and color switching 3. BUZZER ALARM: The measurement box is equipped with an alarm function, which can realize overvoltage, overcurrent, undervoltage, and overtemperature alarms 4. WIRELESS COMMUNICATION: The product display and the measurement box communicate through wireless signals, avoiding cumbersome wiring 5. TWO KINDS OF PORTS: The measurement box has reserved communication function 485 communication port and TTL communication port, users can realize secondary development 6. FLEXIBLE CHARGING AND DISCHARGING: The measuring box is equipped with a charging relay and a discharging relay control interface, which can realize overvoltage, overcurrent, undervoltage, overtemperature protection, flexibly control charging and discharging, and realize the function of automatic management of charging and discharging Specification: Item Type: Voltmeter Coulometer Model: VAC8810F Material: ABS, stainless steel Measuring Range: Capacity (0AH-99999.9AH), energy (0KWH-5999.9KWH), time (0-100 hours), power value (0-999KW), temperature (0-150℃) Measurement Rate: 20 times per second Relay Delay Time: 0-100s Serial Communication Baud Rate: 9600Bps Applicable To: Electric vehicle modification, RV assembly, lithium battery testing, photovoltaic system testing. Package List: 1 x Data Acquisition Box 1 x USB Cable1 x Display1 x Screwdriver1 x Hall Sensor1 x User Manual3 x Cable