List: $48.00
(0) HYBRID CIRCUIT TESTER, 12-42V
MD1651

Tests standard automotive electrical DC 12-42V circuits. Safe for low current circuits and hybrid vehicles. Automatic voltage identification featuring blue for under 40V and red for over 40V... View Details

List: $186.00
(2) RELAY CIRCUIT TESTER
RCT76

Quickly identify electrical problems in an entire circuit at the push of a button. Test the component on a circuit to determine if it is functioning correctly. Includes: six relay plugs and one universal plug for most relay applications, plus a coiled cord for extra reach around the engine area. View Details

List: $33.00
(0) HEAVY-DUTY CIRCUIT TESTER/JUMPER, 12V
CTJ329

Heavy-duty circuit tester for checking low voltage up to 12V. Tester becomes a jumper for powering electrical components or as a ground. Probe, handle, cord and clamp are reinforced for durability... View Details

List: $48.25
(3) CORDLESS CIRCUIT TESTER
CT80

Buzzer and LED indicator give audible and visual signal when positive voltage is detected. No ground or clip required. View Details

List: $45.00
(0) CIRCUIT TESTER WITH CLIP, 6-24V
MD1669

Tests standard automotive electrical DC 6-24V circuits. When black ground clip is clamped to a suitable earth point and contact tip is placed onto testing sample, test bulb will glow if current is present. Needle point probe for easy back probing and piercing... View Details

List: $4.95
(0) POWER PROBE IV SWITCH LATCH
PPSL4

Holds constant power or ground. View Details

List: $498.95
(3) POWER PROBE HOOK
PPHOOK1

Touch the probe tip to the circuit and it intelligently selects the ohm meter or volt meter as well as range. Activates motors and components up to 100A inrush and can power 25A to a circuit continuously. Supplies constant power, pulse power or momentary power into the circuit you are testing... View Details

List: $27.00
(0) BULB FOR MD120
MD120B10

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List: $159.99
(0) AMP HOUND 2
AMP2

Attach adapter to fuse or touch probes to top of the fuse to measure automotive amperage instantly without removing the fuse. Audible tone lets you know when you have connection with a fuse and if there is current present in the circuit; perfect for working on under-the-dash fuse boxes. Snapshot Mode and Tracking Mode allow easy component testing and parasitic drain location... View Details

List: $33.00
(0) CIRCUIT TESTER, 24V
CT24

Insulated probe with shrink tubing prevents shorting the side of the probe to other components. Features incandescent bulb. View Details

List: $33.00
(1) WIREHAWK CIRCUIT TESTER
TH121

Tests standard 12 or 24V circuits. Captures and pierces wire with hook design or use as a test probe. Features 16-gauge 44' ground wire with 50A clamp. View Details

List: $150.40
(13) POWER PROBE III SET
PP319FTC

Full functioning voltmeter measures in 1/10V increments from 0 to 70V. Easy-to-read dual polarity indicators feature a red (+) symbol to indicate positive and a green (-) symbol to indicate negative. Circuit breaker protects the vehicle's electrical system as well as the Power Probe... View Details

List: $245.25
(1) SHORT/OPEN CIRCUIT TESTER
FF310

Reach and trace wires inside bundles, conduits, behind panels, under carpets and more with the 8" flexible probe. Transmitter and receiver LEDs show open or short circuit conditions. Transmitter features auto polarity and leads with 5A alligator clips... View Details

List: $49.99
(0) AMP ALERT
AA69

Detect parasitic draw without removing the fuse. Touch probes to the top of the fuse and if current is detected, tool gives off an audible tone. Resolution: down to 5mA. View Details

List: $87.00
(0) DIGITAL CIRCUIT TESTER, 12-48V
MD1675

LCD display provides "no guess" accurate voltage reading for 12, 24 and 48V circuits. Tester will light up red for power and green for ground during testing. Great for heavy-duty and hybrid vehicles... View Details

List: $4.00
(0) BULLDOG CLIP (EA.)
27C

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List: $128.95
(0) POWER PROBE III
PP3CS

Multi-tasks and tests multiple functions, including polarity and continuity as well as determines bad grounds. Activates and tests electrical components without jumper leads at the press of a switch. Tests from the front to the rear of most vehicles without the constant search for ground hook-ups... View Details

List: $45.00
(0) LED CIRCUIT TESTER, 6-12V AND 24V
MD1646

Checks high and low voltages on 6-12V and 24V circuits. Connect the red lead to a power source and the black lead to a ground source. Tester will light up red for power and green for ground during testing... View Details

List: $34.00
(0) CIRCUIT TESTER, 6-24V
MD1668

Tests standard automotive electrical DC 6-24V circuits. When black ground clip is clamped to a suitable earth point and contact tip is placed onto testing sample, test bulb will glow if current is present. Heavy-duty, stainless steel probe with insulated shaft... View Details

List: $118.95
(0) POWER PROBE IV EXTENSION CABLE
PP401EXT

20 ft. extension cable. View Details