Modular Circuits

A visual approach that puts learning first

The Modular Circuits systems allow students to build basic circuits used to study electric potential, current, components in series and parallel, capacitor charging and discharging, and magnetism.

The PASCO advantage

The 8 cm x 8 cm modules promote collaboration and focus on conceptual understanding. Each module displays the schematic symbol as well as visual components (resistors, capacitors, motors etc) to make the connection between circuit diagrams and functioning circuits.

The modules snap together but require a jumper clip to make the electrical connection which reinforces the concept of a complete circuit.

Data collection is wireless to computers, chromebooks or tablets using the Wireless Current Module and Wireless Voltage Sensor.  These sensors only allow current to be measured in series and voltage to be measured in parallel, helping students understand the proper use of meters with an electrical circuit. The data collection aspect also connects students to the data in real time, creating a richer experience that ensures better retention of core concepts. If preferred, traditional meters can be used in place of (or in addition to) the wireless sensors.

As an instructor, the clean, visual layout based on circuit diagrams both makes it easy for students to correctly wire their circuits and allows easy diagnosis when a mistake is made.  No more tangled nests of wires using up precious time during the lab.

Finally, the entire system ships in a Gratnells® tray that makes clean up and storage much easier than traditional solutions.

Part of what sets Modular Circuits apart is that it allows students to move from circuit diagrams to functioning circuits easily and keep the focus on learning rather than tracing a nest of wires.

Available Sets

Basic Modular Circuits


Eliminate the mess of wires with this ideal system for learning basic circuits. Can be used as a standalone with a multimeter or add PASCO sensors to collect data in real time.

Modular Circuits for Essential Physics


Eliminate the mess of wires with this ideal system for learning basic circuits. This system has more components than the Basic Set and includes the sensors. It is also a component of the Essential Physics program.

Included in each set:

Gratnells® Storage Tray 11




EM-3534 Current Sensor Module 0 1
PS-3211 Wireless Voltage Sensor 0 1
Corner Wire Module 4 4
Straight Wire Module 4 5
Tee Module 2 2
Spring Module 1 1
Switch Module, SPDT 1 1
Switch Module, SPST 1 1
10 ohm Resistor Module 0 1
33 ohm Resistor Module 1 1
100 ohm Resistor Module 1 1
Capacitor Module 1 1
Light Bulb Module 2 3
Potentiometer Module 0 1
Motor Module 0 1
LED Module 0 1
1000 Turn Coil Module 0 1
Battery Holder Module 2 2
Battery, AA 2 2
Jumper Clips 30 45
Diode 1 1
Leaded Resistors 4 6
Leaded Capacitors 2 2
Magnets (0.45" x 0.25") 0 8
Plotting Compass 0 1
Alligator Clip Jumper Wire 0 1

Downloadable Labs

Labs 1-5 can be performed with the Basic Set using either a multimeter or by adding PASCO sensors (Wireless Voltage Sensor and Wireless Current Sensor Module) and PASCO software.

Labs 1-6 can be performed using the Essential Physics Set using the included sensors and either SPARKvue or PASCO Capstone software.

  1. Circuits and Electricity (.zip, 4.6 MB)
  2. Voltage and Batteries (.zip, 4.7 MB)
  3. Resistance and Ohms Law (.zip, 5.1 MB)
  4. Series and Parallel Resistances (.zip, 4.7 MB)
  5. Electrical Power (.zip, 11.3 MB)
  6. Compound Circuits (.zip, 4.0 MB)

Modular Circuits Video

From our "PASCO Shorts" series, here is a very brief introduction to our new Modular Circuits sets.

Convenient storage:

Storage is made simple with the included Gratnells® Storage Tray which keeps every component in place when not in use.