Geokon GK-405 Instruction Manual page 73

Example 3: SET GAGES SPECTRUM:
Set the operating "pluck" spectrum to the "B" range (1400 – 3500 Hz) for each gage:
Command:
V6B<CR>
Response:
BBBBBB
Example 4: TAKE BATTERY READING:
Display the current voltage level of the lithium battery:
Command:
V7<CR>
Response:
+7.6
65