With the PB100 probe tester, you can check voltage and ground signals in a typical DC circuit. However, the kicker is that you can also use it to send voltage and ground signals. It works like a test light that can power circuits or provide a good known ground. This way, you can effectively test components and circuits without having to break out the old alligator clips and jumper wires. You can power or ground a circuit directly through the top of the device.

PB50 Product Function:

There are four modes to diagnose the electrical systems, which can be accessed by depressing the Mode Button and cycling through each one.

✔️DC voltage

While the tool is in this mode, contact the probe tip to a circuit, then the LCD will read the DC voltage with a resolution of 0.1 volt.

✔️AC voltage

While the tool is in this mode, contact the probe tip to a circuit, then the LCD will read the Max. voltage, the Min. Voltage and frequency.

✔️Resistance

While the tool is in this mode, contact the probe tip to a circuit; then the LCD display will read the resistance between the tip and auxiliary ground lead.

✔️Diode

In this mode, the probe tip contacts the positive terminal of the diode; connect the auxiliary ground lead to the negative terminal of the diode, and the screen will display the forward voltage drop, indicating the forward bias. If you exchange the probe tip and auxiliary ground lead, the screen will not display the voltage, indicates the reversebias.

PB50 Electrical System Circuit Tester Functions:

1. Power injection, measuring, ground testing, polarity checking, continuity testing, and component activation.

2. Read the AVO meter, voltage, current, and resistance.

3. Energize the electrical components, such as the cooling fan, relay, etc.

4. Activate the components

5. Determine the positive, negative, and open circuit.

6. Test the bad ground contacts, follow and locate short circuits without wasting the fuse.

7. Test the continuity of the power switch, relay, and diode.

8. Protect the tool from overload.

9. Allow you to work in the dark area by using the built-in head light.

10. Test along the vehicle by the long cable.