2X HCW-M631 DC6-40V Battery Charge Discharge Module Voltmeter Undervoltage Overvoltage Protection Timing Function

Display voltage lower limit - Light press SET - Normal displaynormal display - longsighted press DEC - display countdown timeNormal display - brusque press SET - P0 - short press ADD / DEC - P0 P1 P2 switchNormal display - jejune press ADD - display voltage lower limitDisplay countdown time - short press SET - decimal point flash start countdowncolour: blueMaterial: PCBsize: 66x46x16mmPackage Contents:2 x HCW-M631 DC6-40V Battery Charge Discharge ModuleOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.