Check the listing for details. Tool Aid 21000 Circuit Tester, 48'' Ground Wire. Condition: New. Listed at 10.23 USD. Tool Aid 21000 Circuit Tester, 48 Ground Wire The Tool Aid 21000 Circuit Tester is a widely used automotive tool for quickly diagnosing electrical issues in 6 and 12 volt systems. This easy-to-use tester operates with the power on and includes a 48-inch ground wire for conveniently locating shorts, grounds, and open circuits. Features: This circuit tester is a popular choice for diagnosing electrical problems in vehicles. It can quickly test the functionality of 6 and 12 volt systems in your car. The tester is designed to be used while the cars power is on. It comes with a 48-inch ground wire to help you locate shorts, grounds, and open circuits in your vehicles electrical system. Specifications: Circuit Tester Type: Voltage, Check Point Probe Type: 48 Inch Ground Wire Voltage Rating: 6 and 12 Volt Used With: Power On Application Automotive Circuit Tester Packaging Type: Carded Order Part Number: SG21000 Item Description: Circuit Tester, 48 Ground Wire Manufacturer: Tool Aid Country of Origin: CN Harmonization Code: 90303300 Default Selling Unit: EA