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Welcome to a quick introduction of the Southwire 
40030S Continuity Tester

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Part of Southwire's broad line of tools and 
equipment

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The 40030S is perfect for quick checks on 
wires, cables, fuses, switches, and other 
devices

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Simply connect the tester to the device being 
checked

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The light will glow if there is a low resistance 
electrical path between the connection points

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The continuity tester should only be used 
on unpowered circuits

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Never connect to live voltage when using 
this device