Features and Benefits: 5 heavy duty cord Checks 6 and 12 volt systems Ergonomic slim designed clear handle Bright red slim style replaceable bulb Positive contact-molded strain relief Designed for testing electrical circuits and locating shorts grounds and open circuits. Features and Benefits 5-foot heavy-duty cord. Checks 6- and 12-volt systems. Ergonomic slim designed clear handle. Bright red slim style replaceable bulb. Positive contact-molded strain relief. Heavy-duty stainless steel probe with insulated shaft. Heavy-duty clip with positive soldered connection.