Adapter IDC 10pin 1.25mm - Molex PicoBlade 1.25mm for PMS7003 sensor
In-Line wire connector Simet SCS2 - 4mm 32A/450V - Ideal - 100pcs
Among the various sensors, current sensors are the most widely used. This is due to the fact that they are devices that are useful almost everywhere. They are used to measure the consumption and intensity of electric current both at home and in factories. They are used by large and small companies, individuals, public places and of course all DIY enthusiasts!
Voltage divider 5V/25V for Arduino
A voltage divider is used, when the measured voltage has a larger value than the A/D converter's range. The device works in the range from 0 V to 25 V. The output voltage has a...
DFRobot Gravity: Analog AC Current Sensor SCT 013-020 - to 20A
The sensor measures the intensity of the current flowing in a pipeline without its opening. Measurement occurs through the insulation on a single wire, and the output is the...
DFRobot Gravity v2.1.0 - I2C Digital Wattmeter
A module that allows you to measure electric energy consumption of up to 26 V / 8 A. The maximum measurement error is approx. 0,2%. It communicates through an I2C interface. It...
AC current sensor SCT 013-100 - to 100 A
The sensor providing the measurement of alternating current flowing in the pipeline without the need to pull off the isolation. The measurement occurs through the insulation on...
Hall sensor AH49E - Waveshare 9522
Module with Hall sensor with analog and digital output. It works with voltage from 2.3 V to 5.3 V. It provides the detection of a magnetic field.
Grove AC-Voltage sensor - RMS AC voltage sensor - MCP6002 - Seeedstudio 101991032
The sensor is equipped with the MCP6002 system and is designed to measure the rms value of AC voltage . It has adjustable gain for various voltage inputs from 120 V to...
ACHS-7121 Current Sensor Carrier -10A to +10A - Pololu 4030
Current sensor operating in the range from -10 to 10 A based on the Hall effect. The input voltage from 4.5 V to 5.5 V. The sensor is designed to use in systems of 5 V.
ACS724 current sensor carrier -2,5A to +2,5A - Pololu 4040
The ACS724 is a current sensor module operating in the -2.5 A to 2.5 A range that uses the Hall effect to perform precise current measurements. The module is designed to...
Bidirectional current / power sensor - INA219 - 26V 3,2A - STEMMA AT / Qwiic - Adafruit 904
Bidirectional current and power sensor manufactured by Adafruit. It has an embedded INA219 chip, two STEMMA QT / Qwiic standard connectors located on both sides of the...
DFRobot Gravity - Hall magnetic field sensor
The magnetic field sensor with digital output OH9249. It is supplied with the voltage of from 3.3 V to 5 V, it works with Arduino modules.
Analog ammeter - panel DH-50 - 10A
Analog ammeter capable of measuring current in range up to 10 A. It has a square case in size 50 x 50 mm. The accuracy CLASS 2.5.
Gravity: Conductivity Sensor Switch - DFRobot
The module that is able to determine whether the object has an electric conductivity. The maximum detection value is 10 MΩ. After electric conductivity detection, the module...
Voltmeter KWS-AC300 with split-core current transfer - 50-30V/100A
The KWS-AC300 is a closed-core AC transformer that allows you to measure current parameters. A small LCD display shows data indicating voltage and current, temperature,...
DFRobot Gravity - Linear/Analog Hall Effect Sensor with Magnetic Field Range - DFR1132
DFRobot Gravity module with Hall sensor designed to measure and monitor the intensity of the magnetic field . It is equipped with 3 analog pins and an LED indicator that...
ACS724 current sensor carrier 0A to 20A - Pololu 4044
The ACS724 sensor is a module offering precise measurement of linear current from 0 A to 20 A in one direction. Thanks to the use of technology based on the Hall effect, it...
Analog voltmeter - panel DH-50 - 40V DC
Analogue voltmeter capable of measuring voltages up to 40 V . It has a square housing with dimensions of 50 x 50 mm. Its accuracy is CLASS 2.5.
ACHS-7123 Current Sensor Carrier -30A to +30A - Pololu 4032
Current sensor operating in the range from -30 to 30 A, based on the Hall effect. Input voltage is from 4.5 V to 5.5 V. The sensor is designed to use in systems of 5 V.
Zamel Supla MEW-01 - WiFi Energy Monitor - Android / iOS application
The monitor allows you to control power consumption via WiFi network. It is a 3-phase device for easy installation in the electrical switchgear, it also enables measurements...
ACS724 current sensor carrier -10A to +10A - Pololu 4043
The ACS724 current sensor is a compact, low-resistance module that is designed to measure current in the range of -10 A to +10 A. Thanks to its built-in electrical...
ACS711EX current sensor -31A do +31A - Pololu 2453
Current sensor working in the range of +/- 31 A, based on the Hall effect. The output is an analog voltage. Supply voltage is from 3 V to 5.5 V.
DFRobot Gravity - voltage divider 1/5
A voltage divider is used, when the measured voltage has a larger value than the range of A/D converter. The device works in the range from 0,0245 V to 25 V. The output...
ACS724 current sensor carrier 0A to 5A - Pololu 4048
ACS724 is a sensor that allows measurement of unidirectional current in the range from 0 A to 5 A. It has a low internal current path resistance and offers electrical...
ACS724 current sensor carrier -30A to +30A - Pololu 4047
The ACS724 module is a compact sensor that offers precise current measurement in the range from -30 A to 30 A. It has a low internal resistance of approximately 1.2 mΩ,...See also
Apart from such important measurable values as voltage, power or current impedance, it is necessary to define the current parameters to describe the phenomena occurring in electrical circuits. These parameters are tested by professional current sensors available in this category. Modern measuring technology enables precise and fast measurement of both direct current and alternating current with regular and irregular waveforms. For this purpose, measuring instruments have been designed which, based on magnetic circuits and semiconductor elements, allow to obtain information about the value of the current flowing in the tested circuit.
The Botland store proposes to buy meters and current flow sensors, which will be ideal elements for building a comprehensive measurement system. They can also come in handy for many other projects!
Current sensors are commonly used devices. Depending on the type of device, they can act as independent measuring devices or modules that can be added to a given electronic project. In this category you will find many types of current sensors. Devices such as - for example - Grove ACS70331 DC current sensor enable precise measurement of DC / AC � 5 A (direct current and alternating current). The construction of the sensor is based on the giant magnetoresistive (GMR) technology. The sensor measures the current with a basic sensitivity of 200 mV / A. The module is compatible with Arduino and Raspberry Pi. This sensor, as well as many others available in our Botland store, is also used to detect a magnetic field. It uses an integrated, low-resistance primary wire through which the current flows. The modules are compatible with controllers such as Arduino and Raspberry Pi, but they can also work with other parts of programmable electronics.
Before taking any measurement, please read the instructions carefully. When you want to measure the current in an electric circuit, be sure to carefully follow the safety rules to avoid electric shock and damage to the circuit components.
First of all, you must not touch non-insulated circuit elements as they may be live (wrong connection). Secondly, the principle of limited trust towards bystanders and animals should be applied to prevent their unauthorized contact with live parts. If you want to measure the current intensity, disconnect the circuit from the supply voltage and, in the case of circuits with capacitors, wait a few minutes after turning it off to discharge them. Remember to obey all of the specific steps that can be easily found in the manufacturer’s manual.
When connecting the ammeter directly to the circuit, it is necessary to determine for which element you want to measure the current intensity. Then, the measuring system should be connected in series with this element. If the current flowing in the circuit exceeds the allowable measurement range, a voltage divider, inductive current transformer or semiconductor sensor should be then connected. The obtained measurement data can be sent to the analog input in the Arduino or Raspberry Pi electronics. Thanks to this you can implement, for example, overcurrent protection that controls the relay, or a measurement system that monitors electricity consumption.
Some more advanced sensors measure the current using the so-called Hall effect. An excellent example are the sensor modules manufactured by Pololu. With these devices you can monitor the power consumption of receivers and detect the load connected to the network. It is also possible to implement short-circuit and overload protection.
In the case of Pololu sensor modules, the analog output enables the sensor to be connected to the Arduino. Thanks to this, it is possible to read the voltages representing the current in the tested circuit in a very convenient way. Full compatibility with Arduino and other programmable electronics is an advantage for many other reasons as well. If, on the other hand, you want to measure alternating current in many places of the circuit, then a good solution is to use the SCT 013-030 sensor, which allows you to measure sinusoidal alternating current with RMS value up to 30A, without disconnecting the tested circuit.
