GODIAG GT101 PIRT Power Probe is a multi-use circuit-tester with built-in diagnostic power. It is the best electrical tester for reducing diagnostic time in all 6- to 40-volt vehicle electrical systems. Undoubtedly it is the most versatile and practical tool ever for its users.
GT101 PIRT simplifies the testing of fuse boxes, verifies the correct operation of motors, lights, relays, sensors, wires, and communication-circuits. The large digital color display makes for easy viewing in direct sunlight or complete darkness.

Key Features of GODIAG GT101 PIRT Power Probe:

Performs every type of service including power injection, measurement, ground testing, polarity checks, continuity testing and components activation
Easy-to-read volt-ammeter allows you to read voltage and current at your fingertips.
With a flip of the output switch, you have positive and negative electricity via the probe for powering up electrical components like cooling fans, relays, etc.
Simultaneously uses the hot lead and the ground lead to activate components right in your hand
Instantly identifies positive, negative and open circuits
Tests for bad ground contacts instantly, allowing you to follow and locate shorts fast without wasting fuses
Instantly checks continuity of switches and relays.
Circuit breaker protected
Built-in Flashlight enables you to work in the dark
Audio tone indicator allows for no-look menu scrolling once users are familiar with menu tone assignment
20ft (can be extended via extendable cable port) cable provides excellent accessibility to test along the vehicle
Extremely easy to use and highly reliable
Used for DC 6-40v cars, motorcycles, trucks, buses, engineering vehicles, vessels, tractors, mining vehicles and other vehicles that use DC circuits.