Pocket Volt Meter

I have been using a bigger version of this voltmeter for quite some time and it was always very helpful

so when I saw Pocket Sized Contest I said to my self why didn't use this opportunity and share this with you

I made a few design improvements during this process so I am very happy with results

parts:

• small voltmeter eBay link I recommend 0.36" version
• small switch eBay link
• probes alligator clips or hook probes
• 9V battery
• holder for 9V battery eBay link (i recommend plastic one as on my picture)
• heat shrink foil 50mm ø35mm eBay link

tools:

• soldering iron
• hot glue gun
• hot air gun or flame from hob (if you using heat shrink foil)

• disconnect all wires and find the best position for the switch
• if you have a good position you can glue switch on the place
• then connect (+) power to middle pin on the switch

• connect a wire to crocodile clips and secure it with hot glue
• then connect black (-) probe to common ground and red (+) probe to pin where was orriginaly yellow or white wire

• pick a place where you want your voltmeter and cut them to the needed length

(I made this second to sit on the connector so they were werry short)

• connect the red wire to switch pin and black to common ground

• test it and if everything works you can adjust accuracy if needed with little potentiometer (not every voltmeter have this option)
• if you are done glue every wire to secure long life and glue the whole potentiometer on its place
• you can wrap finished voltmeter in heat-shrink foil if you want for better-looking finish

and you are done you can now put your mini voltmeter into your pocket and have it wherever you go ready to use

enjoy :)