• Circuit tester for 6 and 12 volt systems
• Quickly and safely tests high and low voltages on all vehicles including computerised engine
• Battery & Testing can be used to detect power, ground & find shorts and breaks
• High impedance to protect sensitive electronic sensors, microprocessors, electronic ignition components & air bags
• LED indicates red for power (high) and green for ground (low)
• Insulated alligator clip