Mr Circuit Lab 2 — Troubleshooting with a Digital Multimeter
In stock — ships todayA complete hands-on troubleshooting lab designed to teach students how to measure, analyze, and interpret electronic circuits using a professional digital multimeter.
- 30 Structured Lessons
- Digital Multimeter Included
- Reusable Classroom Kit
- 9-Volt Powered
Ordering for a school or district? Request a quote →
What students learn
Real troubleshooting skills
- Use Ohm's Law and Watt's Law in real circuits
- Calculate equivalent resistance (series & parallel)
- Measure voltage, current, and resistance with a digital multimeter
- Interpret multimeter readings correctly
- Analyze voltage drops and LED behavior
- Design and troubleshoot practical LED circuits
What's in the box
Everything to teach 30 multimeter lessons
-
01
Digital MultimeterMeasures voltage, current, resistance
-
02
Solderless circuit board830-hole reusable breadboard
-
03
9-Volt battery power sourceClassroom-safe low voltage
-
04
10 colored 5mm LEDsFor measurement experiments
-
05
14 resistorsVariety pack for testing & troubleshooting
-
06
Printed lessons + fully illustrated instructionsStep-by-step classroom-ready
-
07
Online video lessons + quizzesSelf-paced make-up work
-
08
Printable Certificate of Electronics TrainingProof of completion
For schools & districts
Order one kit — or outfit the whole classroom.
Mr Circuit is used by public schools, STEM academies, CTE programs, and youth nonprofits across the country. Purchase orders are welcomed. Quotes turn around in 24 hours.
- ✓ Purchase orders accepted
- ✓ Formal quotes in 24 hours
- ✓ Evaluation units available
- ✓ MC1-SET outfits a class of 30
"Mr Circuit is the cleanest way into electronics I've ever used in the classroom."
— Career & Technical Ed. teacher · AZFrequently asked
Answers for teachers, parents, and makers.
What grade levels is this lab for?
Mr Circuit labs work well for grades 6 through college. Middle schoolers use them as a first introduction to circuits. High school CTE and career-tech programs use them as the foundation for HVAC, automotive, robotics, and engineering pathways.
Does this lab require soldering or any power tools?
No. Every circuit is built on a solderless breadboard using pre-stripped jumper wires. The only power source is a 9-volt battery. Safe for classrooms, safe for students, and fully reusable.
How long does each lesson take?
Most lessons fit inside a standard 45–55 minute class period. The first few lessons are shorter (component introductions), and the later circuit builds may span two periods depending on pacing.
Can I order with a school purchase order?
Yes — public schools, districts, and nonprofits can order using a purchase order. Email us and we'll send a W-9 and a formal quote (usually the same day).
Is the lab reusable for next year's class?
Yes — that's the whole point. Components go back in the tray, and the lab resets for the next student. Replacement parts are available individually if something gets lost.
What's the difference between this lab and MC1-SET?
This lab is a single kit — one student, one breadboard. MC1-SET is the classroom bundle with 32 reusable experiment kits and full digital platform access. Most teachers ordering for a full class go straight to MC1-SET.
Order today
Your students will thank you.
Ships same business day from San Luis Obispo, California. Credit/debit or school purchase orders welcome.
— Gary Gibson, author & educator