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After taking this course, you’ll be able to:

  • Explain what an industrial sensor is and how it can be used in process control

  • Explain the operation of the three main types of Photoelectric Sensors: Through-Beam, Retroreflective, and Diffused

  • Describe and sketch the wiring and setup of the Through-Beam, Retroreflective, and Diffused photoelectric sensors

  • List different types of level sensors used in the industry

  • State the 3 most common temperature sensor used in industry

  • Explain the working principles of the Pt100 RTD and show an example of how it's used in industrial measurement

  • Explain what a Load Cell is and list the common types used in industry

  • Explain what a Limit Switch is and how it works

  • Explain what a pressure sensor is and how it works

  • Explain what a Differential PressureTransmitter is and show an example of where it is used in industry

Course curriculum

  1. 1
    • 1. What is a Sensor? Different Types of Sensors, Applications

    • 2. Photoelectric Sensor Explained (with Practical Examples)

    • 3. Photoelectric Sensor Wiring, Setup, and Troubleshooting

    • 4. What is a Level Sensor? Types of Level Sensors

  2. 2
    • 5. What is a Temperature Sensor? (RTD, Thermocouple, Thermistor)

    • 6. Pt100 sensor Explained working principals

    • 7. What is a Load Cell? Types of Load Cells

    • 8. Limit Switch Explained Working Principles

  3. 3
    • 9. What is a Pressure Sensor?

    • 10. Differential Pressure Transmitter Explained

    • 11. Smart Sensor Explained Different Types and Applications

    • 12. What is a Transistor? Working Principles

  4. 4
    • 13. Inductive Sensor Explained Different Types and Applications

    • 14. Inductive couplers Explained Working principles and Application examples

    • 15. 3-wire Inductive Proximity Sensor / How to Read the Datasheet

    • 16. Capacitive Sensor Explained Different Types and Applications

  5. 5
    • 17. What is Sensor Calibration and Why is it Important?

    • 18. What is a Vibration Sensor? Types of Vibration Sensors

    • 19. Diode Module How does it work?

    • 20. What is a NAMUR Sensor?


In the world of instrumentation and process control, we define a Sensor as a device that detects changes in physical, electrical, or chemical properties and produces an electrical output in response to that change.
This free online course is intended to introduce participants to the various sensors used in industry. After completing this course you'll be able to explain what an industrial sensor is, what it can do, and how it can be used in process control. You’ll also learn the various applications of sensors in industrial environments.
This course also introduces the concept of sensor and transmitter calibration.

Ideal for you if…

  • You are interested in Industrial sensors and different types

  • You are responsible for engineering or maintenance in a plant or field environment

Prepare for better pay & bigger responsibility

Testimonial title

Marcin Trojak

From my experience, I have to say that RealPars is the most professional online training program out there. The instructors are easy to follow and clearly explain PLC theories with excellent supporting visuals and real-life application examples. I like that they provide a summary after each lesson that brings together all the information and makes it easier to retain. Plus, I can train anytime, anywhere. I’m a maintenance apprentice right now, but when I complete RealPars training I’ll be ready to go after the PLC programming jobs I want.

Mohammad Khabazi

I work on electrical and instrument maintenance now, but my goal is to become a full-time PLC programmer. University courses take too much money and time. The RealPars video training method is great…the instructors are all experts and speak clearly so they keep my interest and are easy to follow. I’m eager to gain even more PLC expertise as new content is added.

Here’s why you’ll succeed

  • One-on-one support

    Stuck or have a question? You get unlimited support from our team of proven PLC programming experts.

  • Laser-focused lessons

    We only teach you exactly what you need to know to master a PLC course. No fluff, filler, or wasting your time.

  • Experienced instructors

    All PLC training courses include step-by-step instructions from the world’s best so you can join their ranks and gain an unfair advantage.

Start learning now

You'll get lifetime access to this course.


  • Can I get a certificate for this course?

    "Industrial Sensor Fundamentals" is a free course. No certificate will be granted for completing a free course. However, You will receive a personalized certificate of completion once you have fully finished a course (that provides a certificate) while being a Pro member.

  • What is the required software and hardware for this course?

    There won't be any specific hardware or software required for completing this course.

  • Can my employer purchase a course for me?

    Yes. Most people enroll individually, and then submit their receipt to their employer for reimbursement. However, if your employer has a tuition budget and wants to train 5 people or more, you can send us an email at [email protected] and we will help you with bulk signup.

  • Can I register for a course if I am working full time?

    Of course. All of our course content is pre-recorded, so you can work and study on your own time.