Diagnostic & Testing

Multi-functional design allows testing range of 3–26 volts. Bright red and green LEDs interpret voltage signals such as ground, power, and frequency. Tests fuel injectors, solenoids, presence of serial data, and tach reference signals. Output tests on...

Designed to test any type of non-live electrical circuit. Track down broken wires, bad grounds and blown fuses quickly. Features and Benefits Comes with AAA Alkaline battery. Ergonomic, slim designed clear handle. 12-foot red coil cord. Low voltage...

Use this tool for diagnosing electrical faults and CAN bus line activity. Check power and ground circuits, check active protocol lines, or connect a multimeter or oscilloscope for detailed signal analysis. Connects between Diagnostic Link Connector (DLC)...

Also Indicates Polarity. Safe for automotive computers. Won't damage sensitive electronic components. Draws less than 21 mA. at 12 volts DC. Operating range 3-28 volts. The red light indicates positive polarity, green indicates negative polarity.

With the engine running, place the grooved end of the tool over the plug wire. The bulb will flash to indicate spark.

UV Phazer™ Black (AAA Batteries) High Power UV LED Fluoresces dye brighter than the competition Three included AAA batteries provide 3 hours of power Adjustable focus and rugged aluminum housing make it super versatile. Includes UV enhancing glasses

High Power UV LED Fluoresces dye brighter than the competition Lithium-Ion battery provides 2 hours of power Adjustable focus and a rugged aluminum housing make it super versatile Includes charger and UV enhancing glasses

Spark Plug Pliers Two Pulling Positions Help Make Removing Spark Plug Wires A Safe And Easy Job. Specially shaped, cushioned jaws grip the boot straight on or from the side. Plastic handle grips help prevent shock.

A 2-in-1 Tester that Tests Circuits up to 28 Volts and Works as a Jumper Wire for Power or Ground Heavy-duty circuit tester for checking low voltage up to 28 volts By depressing the red button the tester becomes a jumper for powering electrical...

Checks Both Low Voltage and Spark Plug Wires. The low-side checks AC and DC current up to 28 volts with power on. The high-side checks spark plug wires without piercing. Complete with insulated clip.

Quickly Tests Low Voltage up to 28 Volts. A heavy duty circuit tester for lifetime use. The probe, handle, cord and clamp are reinforced for extra durability. Comes with a strain relief spring on the cord.

Quickly Tests Voltage up to 28 Volts. Heavy duty probe, cord and clamp. The probe is insulated with high-visibility shrink tubing to prevent the possibility of shorting the side of the probe to other components. Comes with a strain relief spring on the...