Feature 1Easy to Operate: The transmitter and receiver LEDs indicate open or short circuit conditions clearly, easy for you to operate and safe to use. 2Check Short Circuit: The receiver is designed with ON OFF button, test button, the probe length is 7in, easy to reach wires in congested places. 3Locate Open Circuit: The transmitter is designed with Tone, Off, Continuity button, and the red and black test line cable is about 61cm/24in long. 4Suitable for 642V DC: Short circuit open detector operates from 6 to 42 volts, universal application, can be used for most automobiles. 5Practical Diagnostic Tool: Professional manufacturing, circuit tone tracing probe kit has high performance, strong reliability, practical to use.Item Type:Short Open Circuit DetectorMaterial: ABSVoltage: 6-42VBattery: One 6F22 9V battery for the diagnostic tool, one 6F22 9V battery for the receiver (not included battery)Applicable Models: UniversalProbe Length: Approx. 7in / 17.78cm .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Short Open Circuit Detector1 x Manual1 x Storage Bag1 x Receiver