Currents sensors measure both AC and DC, and with differential inputs these sensors can be used anywhere within a circuit and in conjunction with a voltage sensor.

Use in conjunction with voltage sensors to investigate Ohm’s law, power and circuits.

This high range sensor is very good for measuring start up current in incandescent, filament lamps and for studying fuses.

For smaller currents use the 100 mA or 1A sensors.


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Activities and Curriculium: 

Dynamics Of Heat Investigation with Dataloggers CLICK HERE for Sample

5 Minute Activities with Sensors CLICK HERE for Sample

Science at Work with Dataloggers CLICK HERE for Sample

Voltage and Current Sensor Investigations with Dataloggers CLICK HERE for Sample

High School Chemistry Investigation with Dataloggers CLICK HERE for Sample

High School Biology Investigation with Dataloggers CLICK HERE for Sample

High School Physics, Electricity and Heat Investigation with Dataloggers CLICK HERE for Sample


  • Serial and parallel circuits
  • Ohm’s Law. Resistance in a circuit
  • Electrical induction
  • Battery life
  • Capacitor Discharge and Recharge
  • Current surge
  • Solar cells
  • Electrical component characteristics
  • Voltage and Current relationships.


  • Electrolysis
  • Current ± 10A
  • Resolution: 10mA
  • Maximum Voltage ±27V
  • Resistance/Impedance: ORO18 (0.018 Ohms)

The Current sensor should be placed in series with the circuit component through which the current is measured. Currents in either direction can be measured. The Current sensors have a very low resistance so that they introduce as little resistance as possible to the circuit.

CAUTION: NEVER connect a Current sensor directly across a battery or power supply, without a resistance component to limit the current to within the range of the sensor. Failure to limit the current will cause permanent damage to the sensor.

SAFETY: NEVER use high voltages or household AC.

Works with the following Dataloggers:

VHub4 and VHub8


Current – Differential Input

  • ±10A (Resolution 10mA)