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This module provides precise, galvanically isolated current measurement within a range of ±30 A and voltage up to 480 VRMS, providing RMS, instantaneous, and active, reactive, and apparent power readings. Equipped with an I²C interface, 4-pin JST SH connectors, and 2.54 mm pins, it allows for easy integration with Qwiic, STEMMA QT, and standard microcontrollers. Configuration stored in EEPROM allows for defining address and overload thresholds. The sensor offers three voltage measurement ranges (120 V - default, 240 V, 480 V RMS) and the ability to detect overvoltages. Built-in protection and low conduction resistance ensure safe and accurate measurements. Pololu 5410
The ACS37800KMACTR-030B3-I2C Power Monitor is an advanced measurement board based on Allegro Microsystems’ IC, designed to monitor voltage, current, power, and other parameters in both AC and DC systems. The device enables bidirectional current measurement from −30 A to +30 A and voltage measurement up to 480 VRMS (±980 V peak). With galvanic isolation on the measurement path and secondary isolation on the I²C interface, the module ensures high measurement accuracy and user safety.
The sensor provides RMS and instantaneous readings, automatically detects zero crossings, and calculates active, reactive, and apparent power as well as the power factor. With a 1 kHz bandwidth, it is suitable for a wide range of energy and industrial applications. The integrated Hall-effect current sensor offers an isolated current path, low conduction resistance (0.85 mΩ), and high common-mode noise immunity. The board includes a network of sense resistors optimized for 120 VAC, 240 VAC, and 480 VAC operation, allowing adaptation to various applications.
The module communicates via I²C, accessible through JST SH 4-pin connectors (compatible with Qwiic and STEMMA QT) or standard 2.54 mm pins. Configuration is stored in EEPROM, allowing customization of device address and detection thresholds. The default I²C address is 0x60. Logic is powered from 3 V to 5.5 V, while the integrated isolated DC-DC converter supplies the sensor with 3.3 V.
The ACS37800 sensor measures current flowing from the IP+ to IP− terminals, marked with a +i arrow indicating positive current direction. Voltage is measured between IP+ and V− points on the left side of the board, with positive readings corresponding to higher voltage on IP+. All left-side through-holes are electrically connected, allowing connection of power to internal points and load to external points.
The board has two surface-mount jumpers that configure one of three voltage measurement ranges for the ACS37800 sensor. These ranges are optimized for 120 V, 240 V, and 480 VAC RMS. Each range allows overvoltage detection, supporting transient voltages ~40% above nominal peak voltage. This enables measurement up to twice the nominal RMS before sensor saturation, increasing measurement safety and accuracy. By default, the jumpers are open, allowing measurements up to 120 VRMS.
The module also features an EN input to disable logic power for energy savings. Multiple connection options are provided: large 4 mm holes (up to 10 AWG or ring terminals), screw terminals with 9.5–12 mm pitch, and smaller 2.54 mm and 5.08 mm pads for pin headers. The board includes isolation slots to increase creepage distance, making it versatile for mounting and ideal for energy, industrial, and laboratory measurement applications.
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
This module provides precise, galvanically isolated current measurement within a range of ±30 A and voltage up to 480 VRMS, providing RMS, instantaneous, and active, reactive, and apparent power readings. Equipped with an I²C interface, 4-pin JST SH connectors, and 2.54 mm pins, it allows for easy integration with Qwiic, STEMMA QT, and standard microcontrollers. Configuration stored in EEPROM allows for defining address and overload thresholds. The sensor offers three voltage measurement ranges (120 V - default, 240 V, 480 V RMS) and the ability to detect overvoltages. Built-in protection and low conduction resistance ensure safe and accurate measurements. The version comes with soldered screw terminals and a 240 Vrms jumper. Pololu 5412
No product available!
This module provides precise, galvanically isolated current measurement within a range of ±30 A and voltage up to 480 VRMS, providing RMS, instantaneous, and active, reactive, and apparent power readings. Equipped with an I²C interface, 4-pin JST SH connectors, and 2.54 mm pins, it allows for easy integration with Qwiic, STEMMA QT, and standard microcontrollers. Configuration stored in EEPROM allows for defining address and overload thresholds. The sensor offers three voltage measurement ranges (120 V - default, 240 V, 480 V RMS) and the ability to detect overvoltages. Built-in protection and low conduction resistance ensure safe and accurate measurements. The version comes with soldered screw terminals. Pololu 5411
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
This board is a simple carrier of Broadcom’s bidirectional ±50A ACHS-7125 Hall effect-based linear current sensor, which offers a low-resistance (~0.7 mΩ) current path and electrical isolation up to 3 kV RMS. Pololu 4034
ACS714 Current Sensor Carrier -30 to +30A
The current measurement of 0 - 30A is carried out by the ACS712-30 system based on the Hall effect. The sensitivity of the system is 66mV / A (analog signal).
A modern current sensor combining the Hall effect with an inductive coil, which allows for precise measurements of both the DC and AC components up to 5 MHz. Thanks to its lightning-fast response time and low path resistance, it is perfect for motor control systems, power converters and protection systems. Pololu 5232
No product available!
Precision Hall effect current sensor offering galvanic isolation, wide 150 kHz bandwidth and the ability to measure AC and DC current with very low power loss. With 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 5290
A compact Hall-effect current sensor that provides accurate DC and AC current measurement within a ±30 A range with galvanic isolation. It features an analog VOUT output with a sensitivity of 44 mV/A and 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 (~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 5441
No product available!
Module with ACHS-7123 current sensor with a measuring range of direct and alternating current from -30 to 30 A. It communicates via an analog interface. Pololu 4032
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
Module with INA228 sensor designed for power monitoring. It allows you to measure voltages up to 85 VDC and currents up to 10 A. It uses a 20-bit ADC converter, which guarantees very precise and accurate measurements available via the I2C bus. Adafruit 58332
No product available!
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
No product available!
Current-to-voltage converter module designed for devices with a current signal output. It allows linear conversion of current signals from 0 to 25 mA into voltage signals from 0 to 3 V. DFRrobot SEN0262
The ACS72981 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 250 kHz) and low conduction resistance (0.2 mΩ), it minimizes energy loss and offers a fast response time of less than 2 µs. Pololu 5253
This module provides precise, galvanically isolated current measurement within a range of ±30 A and voltage up to 480 VRMS, providing RMS, instantaneous, and active, reactive, and apparent power readings. Equipped with an I²C interface, 4-pin JST SH connectors, and 2.54 mm pins, it allows for easy integration with Qwiic, STEMMA QT, and standard microcontrollers. Configuration stored in EEPROM allows for defining address and overload thresholds. The sensor offers three voltage measurement ranges (120 V - default, 240 V, 480 V RMS) and the ability to detect overvoltages. Built-in protection and low conduction resistance ensure safe and accurate measurements. The version comes with soldered screw terminals. Pololu 5411
No product available!
The INA3221 module, which allows simultaneous measurement of voltage and current for three power supplies via I2C with ±1% precision. With a 13-bit ADC and built-in 0.05Ω shunt resistors, it allows accurate monitoring of currents up to ±3.2A and voltages up to +26VDC. Adafruit 6062
This module provides precise, galvanically isolated current measurement within a range of ±30 A and voltage up to 480 VRMS, providing RMS, instantaneous, and active, reactive, and apparent power readings. Equipped with an I²C interface, 4-pin JST SH connectors, and 2.54 mm pins, it allows for easy integration with Qwiic, STEMMA QT, and standard microcontrollers. Configuration stored in EEPROM allows for defining address and overload thresholds. The sensor offers three voltage measurement ranges (120 V - default, 240 V, 480 V RMS) and the ability to detect overvoltages. Built-in protection and low conduction resistance ensure safe and accurate measurements. Pololu 5410