1. What is a Current-voltage sensor?

A current sensor is a device that detects electric current in a wire and generates a signal proportional to that current. The generated signal could be analog voltage or current or even a digital output.

2. How do Current-voltage sensors work?

The voltage current sensor works on the principle that detects and converts current to get an output voltage, which is directly proportional to the current in the designed path. This means that when the current passes through the circuit, the voltage drops across the path in which the current is flowing. This creates a magnetic field near the current carrying conductor.

3. What is the use of Current-voltage sensors?

Current sensor devices have major applications in detecting the circuit faults, voltage drops, presence of current and many more. The primary function of voltage sensors is to detect and measure AC and/or DC voltage levels. When the presence of voltage is detected, the sensors provide an output in the form of analogue voltage signals, current levels, frequency and modulated frequency outputs or audible sounds.

4. Applications of Current Voltage Sensors

Detection of Power FailurePower demand controlDetection of Faults in a CircuitTemperature control

5. What are the types of Current-voltage sensors?

Capacitive type: These sensors works when you hold the barrel in your hand and place the tip near a live conductor, you are inserting the high impedance sensing element into a capacitively coupled series circuit.Resistive type: These voltage sensors have two circuits like a voltage divider & bridge circuit. A voltage supply is applied to this circuit. The output voltage can be decided by the resistance used in the circuit. So the voltage change can be amplified.

6. Are these sensors compatible with Arduino and Raspberry Pi?

Yes, these current and voltage sensors are designed to work smoothly with popular microcontroller platforms like Arduino and single-board computers like Raspberry Pi. Most modules offer analog outputs or digital communication formats that make them easy to integrate into DIY circuits, robotics setups, and automation systems.

7. What is the measurement range for these sensors?

The collection includes sensors with different measurement ranges to suit hobby and project needs. You’ll find modules capable of measuring low-range signals for small circuits, as well as options that can monitor higher voltages and currents used in battery systems, motors, and power supplies. Many common modules can handle current ranges up to double-digit amps and voltage monitoring in typical electronics ranges.

8. Can these sensors be used for IoT and automation projects?

Absolutely. These sensors are widely used in IoT, power-monitoring systems, and automation setups. They help track energy usage, battery levels, motor load, and overall electrical performance in smart devices, home automation setups, and industrial-style hobby projects.

9. Do these modules require calibration before use?

Basic calibration or offset adjustment is recommended for accurate readings. Some modules come pre-configured for general use, but tuning may be needed depending on your circuit, power source, and desired precision. A quick baseline calibration ensures your measurements stay consistent and reliable.

Current/Voltage Sensor

Example product title

Rs. 20; Rs. 20
Unit price: per

Example product title

Rs. 20; Rs. 20
Unit price: per

Example product title

Rs. 20; Rs. 20
Unit price: per

Example product title

Rs. 20; Rs. 20
Unit price: per

Example product title

Rs. 20; Rs. 20
Unit price: per

Example product title

Rs. 20; Rs. 20
Unit price: per

Example product title

Rs. 20; Rs. 20
Unit price: per

Example product title

Rs. 20; Rs. 20
Unit price: per

Example product title

Rs. 20; Rs. 20
Unit price: per

Example product title

Rs. 20; Rs. 20
Unit price: per

Current Voltage Sensors	Cost
YHDC Non-invasive AC Current Sensor	Rs.479
ZMPT101B Single Phase Voltage Sensor Voltage Transformer	Rs.130
30A ACS712 Current Sensor	Rs.133
5A ACS712 Current Sensor	Rs.130
Non-Invasive SCT-013 30A AC Sensor Split Core Current Transformer	Rs.435
20A ACS712 Current Sensor	Rs.127
Voltage Sensor Module 25V	Rs.26
WCS2720 Hall Effect based Linear Current Sensor (0-200A)	Rs.329
200A WCS1500 Hall Effect Current Sensor	Rs.272
WCS2702 Hall Effect based Linear Current Sensor (0-200A)	Rs.294

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ACS712 / ACS723 Linear Current Sensor → Arduino

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