How to Make a Continuity Tester Extremely Easy




About: Electrical engineer by profession

This a very easy to make a continuity tester , instant make continuity tester

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Step 1: Have a Look on Video First

Step 2: Material Required

To make this continuity tester we don't need any high end items

lets see what we want

  1. A pencil
  2. A LED
  3. A remote with batteries
  4. Some piece of wires
  5. Tape

Step 3: How to Make

After getting all the items.

Solder one with the one end of LED and keep other end of LED free we will use that end as a testing terminal.

stick the LED at tip of pencil so it became easy to handle and testing

now connect the wire from LED to the positive terminal of battery.

connect one wire with negative terminal of battery and its other end kept open

now that open end are our testing points

if you short then circuit will close and LED Glow.

in this way we can check continuity when ever we need

this tester is easy to make almost without any cost

please watch video for better understand


friends bye

thanks for your attention



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    3 Discussions


    2 years ago

    You need to add a resistor to limit the intensity in the Led or it
    will burn. Another interest of having a current limiter is that you
    won't destroy so many components when trying to test their "continuity".
    Last, batteries will last longer.

    1 reply

    Reply 2 years ago

    would you put the resistor on the battery side or probe side


    2 years ago

    I wouldn't use it on anything but wires.