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The ACS71240 current sensor module uses the Hall effect to accurately and safely measure AC and DC current, providing electrical isolation of the current path. With a wideband analog output (up to 120 kHz) and low conduction resistance (0.6 mΩ), it minimizes energy loss and offers a fast response time of less than 5 µs. Pololu 5246
The ACS71240 current sensor module is a modern solution based on the Hall effect, providing electrical isolation of the current path. This allows it to be placed anywhere in an electrical circuit while ensuring safe and precise current measurement. The sensor features a noise-resistant design, eliminating the influence of uniform magnetic fields such as the Earth's field. With a low conduction path resistance (0.6 mΩ) and 2 oz copper layers, energy losses are minimized.

The sensor provides a wide-band analog output (up to 120 kHz) proportional to AC or DC current, with a response time of less than 5 µs. A unique feature of this model is its voltage output independent of supply voltage, ensuring resistance to interference. The built-in overcurrent detection function with a 1.5 µs response time allows for rapid short-circuit detection and system protection. The module operates over a wide temperature range (-40°C to 125°C), making it ideal for automotive and industrial applications.
Multiple mounting methods allow for easy circuit integration – you can solder wires directly to the holes, use solderless ring terminals, or attach screw terminals. The largest holes accommodate wires up to 8 AWG and M3.5 screws, while additional 3.5 mm and 5 mm holes support screw connectors or header pins.

The module is ideal for applications requiring precise current measurement, such as energy management systems, battery monitoring, protection circuits, and industrial electronics. Its electrical isolation allows safe current monitoring in high-voltage systems, while its low power consumption makes it suitable for mobile and battery-powered devices. With a user-friendly interface and compact design, the sensor is an excellent choice for both professionals and hobbyists. It can be used in prototyping, testing, and as a component in fully developed measurement systems. The ease of integration and broad range of applications make the ACS71240 an essential tool in modern electronics.
Data sheet
Manufacturer BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
Responsible person BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
The ACS71240 current sensor module uses the Hall effect to accurately and safely measure AC and DC current, providing electrical isolation of the current path. With a wideband analog output (up to 120 kHz) and low conduction resistance (0.6 mΩ), it minimizes energy loss and offers a fast response time of less than 5 µs. Pololu 5243
The ACS71240 current sensor module uses the Hall effect to accurately and safely measure AC and DC current, providing electrical isolation of the current path. With a wideband analog output (up to 120 kHz) and low conduction resistance (0.6 mΩ), it minimizes energy loss and offers a fast response time of less than 5 µs. Pololu 5244
The ACS71240 current sensor module uses the Hall effect to accurately and safely measure AC and DC current, providing electrical isolation of the current path. With a wideband analog output (up to 120 kHz) and low conduction resistance (0.6 mΩ), it minimizes energy loss and offers a fast response time of less than 5 µs. Pololu 5245
Allegro\'s TMR sensor module enables precise, non-contact current measurement without breaking the circuit. It offers high sensitivity, low power consumption, an analog output proportional to the magnetic field, and a threshold detection (FLAG) function. Its compact design, AC/DC support, and easy installation make it ideal for energy-efficient and safe current monitoring systems. Pololu 5355
ACS724LLCTR-30AB current sensor module with a DC and AC measurement range from -30 to +30 A. It communicates via an analog interface. Pololu 4047
ACS724LLCTR-20AU current sensor module with a current measurement range from 0 to 20 A. It communicates via an analog interface. Pololu 4044
No product available!
This module provides precise current, voltage, and power measurement in DC systems up to 85V and 10A. It features a 16-bit ADC, fast alarm response, and an I2C interface for easy integration with Arduino, Raspberry Pi, and CircuitPython. The module supports both high- and low-side measurement and automatic power calculation, and the STEMMA QT connector allows for quick, solderless installation. Adafruit 6349
Precision Hall effect current sensor offering galvanic isolation, wide bandwidth of 150 kHz and the ability to measure AC and DC current with very low power loss. Thanks to differential measurement and immunity to magnetic interference, it is perfect for applications requiring accurate current monitoring, such as power supplies, converters or motor control systems. Pololu 5295
Bidirectional current sensor module based on the ACS724 circuit. It allows you to measure current in the range -50A to + 50A. It operates with a voltage of 4.5V to 5.5V and is intended for use in 5V systems. Pololu 4049
No product available!
A compact Hall-effect current sensor that provides accurate DC and AC current measurement within a ±30 A range with galvanic isolation. It features a high-sensitivity analog VOUT output with a 150 kHz bandwidth, enabling fast and precise readings in dynamic systems. The module operates over a wide temperature range of -40°C to 125°C, and the low current path resistance minimizes energy loss. Its small size and flexible mounting options make it ideal for prototyping, industrial systems, and space-constrained projects. Pololu 5457
No product available!
Module with ACS723 current sensor with a measuring range of AC and DC ± 5 A. It communicates via an analog interface. SparkFun SEN-13679
A modern current sensor with a measurement range of -40 A to +40 A, combining the Hall effect with an inductor, allows for precise measurements of both DC and AC components up to 5 MHz. Its lightning-fast response time and low path resistance make it ideal for motor control systems, power converters, and protection systems. Pololu 5231
Module with ACHS-7122 current sensor with a measuring range of direct and alternating current from -20 to 20 A. It communicates via an analog interface. Pololu 4031
ACS724LLCTR-05AU current sensor module with a current measurement range from 0 to 5 A. It communicates via an analog interface. Pololu 4048
Analogue current sensor module. Allows measurement of AC and DC currents up to 50 A. DFRobot SEN0098-V2
A compact Hall-effect current sensor that provides accurate DC and AC current measurement within a ±30 A range with galvanic isolation. It features a high-sensitivity analog VOUT output with a 150 kHz bandwidth, enabling fast and precise readings in dynamic systems. The module operates over a wide temperature range of -40°C to 125°C, and its low current path resistance (~1.6 mΩ) minimizes energy loss. Its small size and flexible mounting options make it ideal for prototyping, industrial systems, and space-constrained projects. Pololu 5453
No product available!
ACS724LLCTR-10AB current sensor module with a DC and AC measurement range from -10 to +10 A. It communicates via an analog interface. Pololu 4043
The ACS71240 current sensor module uses the Hall effect to accurately and safely measure AC and DC current, providing electrical isolation of the current path. With a wideband analog output (up to 120 kHz) and low conduction resistance (0.6 mΩ), it minimizes energy loss and offers a fast response time of less than 5 µs. Pololu 5246