1When measuring current through the digital meter, the wire can be passed through the round hole of the sensor, which is quick and convenient. 2The display LCD screen can be turned off manually or automatically after a certain period of time. 3The meter has protection functions such as overvoltage, overcurrent, overpower, time limit, and overcharge. 4With power-off memory function, the time and AH number are cleared, which will not affect the next measurement. 5Commonly used for voltage, current, charging capacity AH number, WH number, power measurement, the display information is comprehensive and clear. Item Type: Coulombmeter Material: ABS Type: Regulating IC Capacity Measurement Range: 0.001AH-65000.00AH Energy Measurement Range: 0.00kWh-99999.9WH External Power Supply Voltage Range: 6-60V Voltage Measurement Range: 0.01V-120V Input Current Measurement Range: 0.1A-300A 1.Voltage amplitude 2.Current amplitude 3.Volume percentage and progress bar 4.AH number (blue) power size (yellow) 5.WH number (blue) time range (yellow) 6.Protection and selection menu 7.Button How to use:When in use, first connect to the power supply, the positive terminal or the "BAT" terminal near the second battery line, charge the battery through the round hole, and then check whether the jumper cap is in J3, the best to collect the battery is the "BAT" expansion board The negative terminal plug, independent power supply (12v-60v), live. Picture 1 is a non-relay power connection mode. When in use, the "Bat" terminal is first connected to the power source, next to the line where the battery is connected to the positive load or through a hole through the HALL transformer. Then check if the jumper cap is on J4, and then connect the relay. Finally, to connect the battery cable with the terminal, use the terminal to insert it into the expansion board "Bate" and turn on the power. Figure 2 shows the wiring method of an independent power supply without a relay. When in use, first connect to the power supply, the positive terminal or the "BAT" terminal near the second battery line charge the battery through the round hole, and then check whether the jumper cap is in J3, it is best to collect the battery from the "BAT" expansion board Negative terminal plug, independent power supply (12v-60v), live. Figure 3 Wiring instructions for VAC9610S power extension board When in use, the "Bat" terminal is first connected to the power supply. Secondly, use the battery as the positive pole or one of the lines and holes near the HALL transformer to load the load. To check if the jumper cap is on J3, then connect the relay. Finally, connect it to the battery terminal and use the terminal to insert the "Bate" expansion board Independent (independent power supply with connected relay voltage) and power it. 1 x Coulombmeter 1 x Connection Line 1. Please pay attention to the wiring in accordance with the schematic diagram, do not connect reversely or wrongly.2. Users need to prepare the relay by themselves, there is no relay in the standard setting3. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.