11436 Titan Digital Circuit Tester. LCD display provides a ‘no guess’ voltage value of the circuit. Used to detect voltage, power, ground and circuit integrity. For use on 6-48 Volt DC systems. Computer safe 10mA circuit draw for confident testing.

Associated Equipment's ATEC Digital Voltmeter, No. 12-1011, determines State of Charge and checks voltage. This Made in America tool makes it easy to check state of charge with the use of a table right on the tool that compares voltage reading and corresponding state of charge for both Lead Acid and AGM Batteries. Includes a digital readout of battery voltage.

1AC-A1-II Fluke Volt Alert Non-Contact Voltage Tester. The next generation VoltAlert™ AC non-contact voltage testers from Fluke are easy to use — just touch the tip to a terminal strip, outlet, or supply cord. When the tip glows red and the unit beeps, you know there’s voltage present. Electricians, maintenance, service, safety personnel, and homeowners can quickly test for energized circuits in the workplace or at home. How it Works:  The 1AC-A1-II Fluke Volt Alert senses the steady state electrostatic field produced by ac voltage through insulation without requiring contact to the bare conductor. A red glow at the tip and a beeping noise (if not switched OFF) indicates the presence of voltage.

Blowing Fuses? Plug in the FUSE BUDDY and read circuit amperage draw. This handy tool plugs directly into mini fuse socket for direct testing of live circuits while maintaining circuit protection. Original fuse is replaced in-line during testing, thereby maintaining circuit protection. Makes circuit testing easier, FUSE BUDDY adapter end is shaped like a fuse. Ideal for electrical troubleshooting at the fuse box.

Blowing Fuses? Plug in the FUSE BUDDY and read circuit amperage draw. This handy tool plugs directly into mini fuse socket for direct testing of live circuits while maintaining circuit protection. Original fuse is replaced in-line during testing, thereby maintaining circuit protection. Makes circuit testing easier, FUSE BUDDY adapter end is shaped like a fuse. Ideal for electrical troubleshooting at the fuse box. Can be used to measure all circuit draws up to 20 Amps Can even be used to test parasitic drains (battery drains). Measuring Capability: 0 – 20 Amps / 48V DC or AC. Resolution .01A (10 milliamps), accuracy + 2%.

OTC 3054E Noid Lite / IAC Test Kit - Simplest method for eliminating the EFI system or idle air control as possible faults on no-start vehicles. Disconnect the fuel injectors, plug in a Noid Lite, and crank the engine. A flashing light indicates normal pulsing voltage.

Blowing Fuses? Plug in the FUSE BUDDY and read circuit amperage draw. This handy tool plugs directly into mini fuse socket for direct testing of live circuits while maintaining circuit protection. Original fuse is replaced in-line during testing, thereby maintaining circuit protection. Makes circuit testing easier, FUSE BUDDY adapter end is shaped like a fuse. Ideal for electrical troubleshooting at the fuse box. Can be used to measure all circuit draws up to 30 Amps Can even be used to test parasitic drains (battery drains). Measuring Capability: 0 – 30 Amps / 48V DC or AC. Resolution .01A (10 milliamps), accuracy + 2%.

Now a Fuse Buddy tester for Maxi fuse circuits! Fuse Buddy Maxi can test up to 80 AMPS. There are numerous Heavy Duty & Automotive applications. With supplied adapters, the 315 can also work with MINI and ATC circuits. Easy access to measure amperage draws in MAXI, MINI & ATC circuits. Can measure up to 80 Amps DC on MAXI fuse circuits.

OTC 3587 Terminal Test Kit - For the professional electronic diagnostic technician. Set includes an assortment of 28 flexible, color-coded connectors that adapt to Packard WeatherPack, Metri-Pack, and Micro-Pack terminals.

OTC 3630 Battery Powered Circuit Tester - Designed to test any type of non-live electrical circuit. Track down broken wires, bad grounds and blown fuses quickly.

OTC 3631 Heavy-Duty Logic Probe Circuit Tester - 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.

OTC 3633 Mini-coil Cord Circuit Tester - Small handle with needlepoint stainless steel probe allows easy back probing and piercing. Special threaded probe comes with screw on alligator clip for additional versatility. Useful in testing electrical circuits and locating shorts, grounds, and open circuits.

OTC 3634 Heavy-Duty Straight Cord Circuit Tester - Designed for testing electrical circuits and locating shorts, grounds, and open circuits. Features and Benefits.

OTC 3636 Heavy-Duty, Coil Cord Circuit Tester - Designed for testing electrical circuits and locating shorts, grounds, and open circuits.

OTC 3642 12V - 24V Truck Circuit Tester - Works on 12–24 volt systems. Features 7" stainless steel probe. 24' coil cord. Extra large clamp.

12-Pack Display Circuit Tester Assortment

TPI 40 AC Volt Tester (Low Voltage) - The TPI 40 is essential to anyone determining the presence or absence of electrical voltage between 24-90 VAC. Use the TPI 40 for checking lawn irrigation equipment, thermostat controls, vending machine changers, and other low voltage equipment.

420184-025 Low Voltage Circuit Tester (25 Pack) - This unit works on 6, 12 and 24 volt circuits. It has a chrome plated brass body with a screw on cap to protect the insulation probe.

420184-2001 Low Voltage Circuit Tester (Each) - This unit works on 6, 12 and 24 volt circuits. It has a chrome plated brass body with a screw on cap to protect the insulation probe.

TPI 45 AC Volt Tester - The TPI 45 is essential to anyone determining the presence or absence of electrical voltage between 50-1,000 AC. The TPI 45 allows the user to detect a defective ground before an individual is exposed to injury. Simply touch the plastic tip to a connection point or move it along a wire. If AC voltage is present, the tip will glow red. Defective grounds can cause either voltage or an electrical field to be present on a metal casing. Both of these conditions can be detected by using the TPI 45.

TPI 50 AC Volt Tester - The AC Volt 50 is a hand held device for determining the presence or absence of AC voltage in insulated wires, wall receptacles, fuses, junction boxes, switches, and any other voltage carrying electrical system. It is not necessary to disconnect the system in question because no contact is required for operation and current flow is not necessary to locate voltage.

The TPI 510 is an easy to use, solar irradiance meter for measurement of not only solar radiation, but all measurable light sources including all visible light. The TPI Solar Meter is state of the art and easy to use. It is designed to measure solar power in W/m2 or BTU (ft2*h). Use to find the optimal angle of inclination for installing solar panels. Measure light intensity through windows. Determine the effectiveness of solar film / window tint. Measure solar radiation (irradiance). Displays results in W/m2 or BTU. 0 to 1999 W/m2 (0 to 634 BTU) range. Min / Max and Data hold functions.

OTC 6589 Electronic Ignition Spark Tester - Used to check for spark on electronic ignition, gasoline engines used in import and domestic cars and trucks, as well as small engines.

OTC 7645 Parasitic Draw Test Switch - Finding electrical problems that drain the battery is getting harder all the time.

One-Man Testing for Male and Female 7-Way Round Pin Tractor-Trailer Plugs

Tests Trailer Circuits Quickly and Easily on Most Light and Medium-Duty Trucks and Campers

Test tow circuits from vehicle's 6-way round connector to verify proper lighting and brake operation.

Chase down short circuits without blowing fuses!

ERT1500 TPI Earth Resistance Tester

Use the MFT5010 to test five major electrical testing requirements including insulation resistance, continuity, loop impedance and RCCB, as well as earth resistance. Additionally, the MFT5010’s Phase indicator can check a wide range of 3-Phase Power sources from 110V to 600V. Features include, Continuity Test: Live circuit warning beeps and “LIVE” displays on the LCD, Insulation Resistance, Loop impedance: Displays main voltage on the LCD, indicates Phase Angle on the LCD, with automatic overheat protection, PSC (Prospective Short-Circuit Current), RCD test: Displays main voltage and Phase Angle on the LCD, AC and DC Voltage, Earth Resistance: 3 or 2 pole measurement.

Continuity Tester

Easily measure and check alternator, starter or generator currents. Simply hold the instrument against the wire in the groove as indicated on the back of the case.

SAIT200 TPI Analog Insulation Resistance Tester

SAIT25 TPI Analog Insulation Resistance Tester

SDIT30 TPI Digital Insulation Resistance Tester

SDIT300 TPI Digital Insulation Resistance Tester

Professional digital sound level meter designed to measure noise levels from 35 to 130dB. The unit incorporates a large LCD, maximum hold function, Over and Under range indicator, peak and average response settings and A-C weighing for checking compliance with standard safety regulations. Applications include the monitoring of HVAC/R compressors, blowers, health and safety requirements, environmental quality issues, offices, factory machinery, airports, auditoriums and studio acoustics.

SMG5 Fieldpiece Digital Megohm Meter - Evaluate Compressor Insulation. Helps to Predict Compressor Failure. The Fieldpiece Digital Megohm Meter, model SMG5, is a compact standalone meter designed for checking HVAC compressor insulation. The SMG5 provides a 1000V voltage source, monitors current, and displays the resistance between the test points. Maximum current output is <1mA. It can be used to determine the condition of insulation from winding to ground in a motor, compressor, or transformer. Includes a case, alligator clip lead tip and leads with removable tips.

SNCV1 Fieldpiece Non-Contact Voltage Detector - This non-contact voltage detector features an analog feel. The closer the probe is to the voltage source, the louder and brighter the indicators become. Detects AC voltages without contact and features a bright red LED light and buzzer. With a 24VAC to 440VAC range of the SNCV1 offers technicians the ability to test thermostats and other HVAC/R parameter easily. Clips to your shirt pocket and is a quick source to find out whether that line is hot or not.

SPD480 TPI Phase Rotation Meter

Complete set of test and measurement accessories designed especially for automotive specialists. Use the sharp stainless steel probes to contact the wire conductor or pinpoint tests on a circuit or relay, and the large jaw alligator clips to get a good ground on the engine or to connect to the battery terminals. An extra long set of alligator clips easily grip to the alternator BAT terminal or the S terminals. The set comes with silicone test leads and a case to keep it organized.
Tested to 60 V DC

ZSPRT Zebra Instruments Short Finder (24 Volt Short Finder and More). Used to quickly locate shorts in 24VAC circuits while protecting controls from damage. The Short•Finder is a 24 volt system "short-finder". It'll keep the Tech from wasting a pocketful of fuses while trying to locate a control voltage short. A built-in circuit breaker turns on a bright red LED when tripped. As the Tech removes the short, the breaker can be flipped, the LED goes out, and the circuit is restored. Lightweight and compact, with two 18" leads.