• Provides a convenient electrical ground and power source from the vehicle.
• Plug the tool into the cigarette lighter or power accessory receptacle. You now have a ground and power source on the dash.
• The plug light will come on to signal the plug is properly connected and both power and ground are available at the posts.
• For power, connect to the positive (+) terminal.
• For electrical ground, attach ground wire from the instrument to be grounded to the negative (-) terminal.
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