Introduction: Diy Polarity and Continuity Tester

Picture of Diy Polarity and Continuity Tester

This is my homemade polarity and continuity tester (max. 14 volts)
I used : 
2x Bright Leds
1x Resistor (depends on leds and voltage)
and some wires 
Circuit was made in multisim

Comments

simplyconnected (author)2012-06-25

What you've built is a voltage checker with polarity indicator.
A continuity checker (like for checking fuses out of the circuit) has its own battery and it needs no polarity indicator.

What did you use for the body housing and probe?

old pen

tutdude98 (author)2012-04-06

Continuity tester is small battery

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Bio: My name is Alen and i'm average i guess. I love to make anything that need electricity, well i like building anything AWESOME...
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