Wireless Current Sensor

Description

Overview

The Wireless Current Sensor’s wide current range enables introductory and advanced explorations of the fundamental concepts of electricity and basic circuits. Designed with user safety in mind, the sensor can be used to measure currents up to 1 A and includes built-in overload protection. Collected data can be wirelessly transmitted to computers, Chromebooks, tablets, and smartphones. When combined with a Wireless Voltage Sensor, students can explore Ohm’s Law, series and parallel circuits, and much more.

Since current can only exist in a complete circuit, the Wireless Current Sensor must be part of that circuit to measure current. It is connected in series and has a very low resistance (0.1 Ω). For this reason, we do not recommend connecting it directly across a battery or other voltage source without a resistive load.

Features

  • Two Ranges: ±1.0A and ±0.1A
  • Resolution: 0.2mA at ±1A range and 0.02mA at ±0.1A range
  • Bluetooth® sampling rate of 1.0 kHz
  • High-speed sampling via USB
  • Remote logging
  • Variable sampling rate for recording small, fast changes or experiments that run for hours, days, or weeks

Applications

  • Current flow in series and parallel circuits
  • Kirchhoff’s Current Law
  • Current flow in electrolysis reactions

Perform These Experiments

  • Ohm’s Law
  • RC and LRC circuit analysis
  • Electrochemistry

What’s Included

  • 1x USB Cable
  • 1x Red, Banana-to-alligator-clip
  • 1x Black, Banana-to-alligator-clip
  • 1x Wireless Current Sensor

Product Specifications

High Setting Range ±1 A
Low Setting Range ±0.1 A
Resolution 0.2mA (±1A range); 0.02mA (±0.1A range)
Maximum Sampling Rate (Bluetooth) 1000 Hz
Maximum Sampling Rate (USB) 100 kHz
Input Resistance 0.1 Ω

Battery and Logging

Stored Data Points Memory (Logging) 1 >55,000
Battery – Connected (Data Collection Mode) 2 >90 hr
Battery – Logging (Data Logging Mode) 3 13 days
Battery Type LiPo

1 Minimum # of data points with all measurements enabled, actual results depend on enabled measurements.

2 Continuous use in a connected state until battery failure, actual results will depend on sample rate, active measurements, and battery condition.

3 Logging until battery failure, actual results will depend on sample rate, active measurements, and battery condition.

* Normal classroom use is the sensor in active use for 20min/lab for 120 lab periods/yr.

Product Guide

Select The Right Voltage & Current Sensor

Select The Right Voltage & Current Sensor

Educational voltage and current sensors don’t have to look serious to have seriously powerful capabilities. We provide user-friendly voltage and current sensors that generate live data to improve students’ contextual understanding of electrical concepts. This page provides a comparison chart of our offerings to help you make an informed purchase.

Experiments

Perform the following experiments and more with the Wireless Current Sensor.
Visit PASCO’s Experiment Library to view all activities for this product.

Ohm’s Law

Students measure the current and voltage across a resistor while varying the output voltage. A graph of voltage vs current will reveal Ohm’s Law.

DC Circuits

In this lab, students will use a voltage-current sensor and an AC/DC electronics laboratory to construct simple resistor circuits with resistors in series or parallel, or both (with at most one parallel loop of resistors), to…

Planck’s Constant

In this lab, students will use a voltage-current sensor and an AC/DC electronics laboratory to measure the turn-on voltage of various colors of LEDs and then plot the turn-on voltage versus LED frequency to determine the value…

Electromagnetic Induction

In this lab, students will use an induction wand, rotary motion sensor, variable gap magnet, and magnetic field sensor to determine how the rate of change of magnetic flux through a coil affects the magnitude and direction of…

Kirchhoff’s Rules

In this lab, students will experimentally demonstrate Kirchhoff’s Rules for electrical circuits. Using the Digital Multimeter, students will record the voltage, current, and resistance of the circuit.

Supporting Documents

Manuals
Wireless Current Sensor Manual English 620.25 KB

Specifications

Range
  • ± 1 A
Max Sampling Rate
  • 1000 samples/second via Bluetooth
  • 100,000 samples/second via USB (burst mode)
Input Resistance
  • 0.1Ω
Battery
  • Rechargeable Lithium-Polymer
  • Expected life of 3-4 months on a single charge with normal use
Logging
  • Yes
Connectivity
  • Direct USB or Bluetooth® Smart (Bluetooth 4.0)
Max wireless range
  • 30 m (unobstructed)