1. With acrylic shell baffle2. Support 1~24 strings of lithium battery packs (batteries with a voltage between 2V~4.5V)3. Display the voltage of each string, the voltage, the highest string voltage, the lowest string voltage, the maximum voltage difference of the battery pack, the average voltage, the balanced voltage, and the number of battery strings.4. The voltage accuracy of each string is about 0.003.5. Yes Reverse connection, high voltage ( 4.5V), low voltage (less than 2V) warning sound and prompt6, Type-c and DC two power supply methods (power supply 5V)7. Support mixed insertion (no need to from B1)8. Can switch between Chinese and EnglishSteps1. Turn on the power switch after the device is powered on2. The battery pack is wired according to the label on the device or the adapter board. 3. Check whether the display data on the display is normal. position, cannot be connected to two interfaces at the same timeColour:BlueMaterial:PlasticPackage Contents:1 x Battery Voltage Tester CheckerOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.