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V1 to V3 Step 3:
Fit the three prong switch into the terminals at S1 and solder it in place from the back of the board.
The two holes to the left of S1 are where the 9 Volt battery clip attaches. Thread the black wire into the
round hole and the red wire into the square hole. Solder these in place from the front of the board and
clip off any excess wire.
V1 to V3 Step 4:
Attach a 9 Volt battery to the battery clip and use the switch to turn the RRampMeter on to test it. If
both the red and green lights turn on and voltage and current readings display, then it is good to go.