Best Current Sensors of 2026

The CrocSee Miniature Current Switch CS-TS0 is a self-powered and accurate current sensor that offers a sensing range of 1 to 50 amps with a solid-state output. Its faster response time of ≤200ms ensures that a set of contacts are closed immediately once the current flow is detected. The product is equipped with N.O. Universal Outputs of 2.5A @ 120 VAC/240VAC and requires no external power supply. However, a load must be applied across the NO contacts to test its operation.

The HiLetgo 30A Sensor is designed to help you accurately measure electrical current. It features the ACS712ELC-30A chip, which allows for measurements of both positive and negative currents up to 20 amps, providing a reliable analog output of 100mV per amp. This means you can easily monitor your electrical systems without complicated setups. The module also includes a 5V power supply and an on-board power indicator, ensuring you have clear visibility of its status. Additionally, when no current is detected, the output voltage stabilizes at half of the supply voltage, allowing for straightforward readings.

The HiLetgo AC Current Sensor is designed to measure alternating current up to 5A, providing you with a reliable analog output that corresponds to 5A/5mA. It features a micro-precision current transformer and a sampling resistor, ensuring accurate readings for your electrical applications. With its single-phase active analog signal output and operational amplifier, you can easily integrate this sensor into various projects. This combination of features simplifies monitoring and enhances your ability to manage current flow effectively, making it a valuable tool for troubleshooting and analysis.

The HiLetgo INA219 Sensor is a compact and reliable tool for measuring DC current and power. It operates within a 3 to 5-volt range, making it compatible with many devices and systems. Its small SOT23 footprint allows easy integration into tight spaces or custom projects. With its precise measurement capability, offering up to 1% accuracy and a minimal offset of 100 microvolts, you can trust it to provide accurate readings and help you monitor your power supply efficiently. This sensor is perfect for hobbyists and engineers who need dependable current sensing in their electronic designs.

The SYUAB Split Core Current Sensor is a reliable and versatile device suitable for current measuring, monitoring, and protection of various electrical equipment. With its non-invasive split transformer sensor design, it offers convenience and ease of use for DIY projects and works seamlessly with Arduino and Raspberry Pi. The opening size of 13mm × 13mm allows for easy installation, and the 1.5-meter lead length provides flexibility in positioning. The sensor's wide frequency range of 50HZ-150KHZ ensures accurate readings for a variety of applications. With a non-linearity of only 3%, the SYUAB Current Sensor provides precise measurements, and its compatibility with similar products makes it a reliable choice for any electrical project.

The nodehawk M-3050 Current Sensor is a versatile device designed to monitor AC current effectively. It uses mutual inductance to detect current without direct contact, allowing you to safely control industrial equipment like buzzers or relays. This sensor is self-powered, so you don’t need an external power source, making installation simpler and cost-effective. It offers fast response times with millisecond-level switching and minimal hysteresis, ensuring accurate and reliable performance even in strong magnetic environments. Plus, the adjustable action current and LED indicator make it easy for you to monitor and adjust the sensor’s operation at a glance.

The UMLIFE 5pcs ACS712 30A Range Current Sensor Module Detector is a versatile current sensor that has a 5V power supply with an onboard power indicator. The module can measure a range of 5/20/30 amps, corresponding to the analog output of 100mV/A. It is useful in motor control, load detection, and management, switching power supply, and overcurrent fault protection.

This product includes a current sensor chip, with a measuring range of ±30 amps and corresponding analog output of 66mV/A. It requires a 5V power supply and comes with an on-board power indicator. When no detection current is present, the output voltage is VCC/2. The module is based on the Hall detection principle, so it is important to avoid magnetic field interference. This package includes three 30A current sensor modules to choose from.

The JESSINIE WCS1800 Current Sensor is a versatile module that offers accurate current detection and protection. With a working voltage of DC5V and a current detection range of 35A, this sensor is suitable for both DC and AC applications. The module provides two types of output signals: analog voltage signal and switching value signal, making it compatible with ADC and microcontroller IO port control. The overcurrent signal indicator light ensures easy monitoring of overcurrent situations. Additionally, the module comes with mounting holes, making it convenient for firmware installation. Whether you need to measure current or protect against overcurrent, the JESSINIE WCS1800 Current Sensor is a reliable choice.

The AISELAN Battery Current Sensor is designed to work with a wide range of GM vehicles, including models like the Allure, Enclave, Lacrosse, Regal, Camaro, Cruze, Avalanche, and Silverado. This sensor ensures your vehicle's battery current is accurately monitored, which helps maintain optimal electrical system performance and prevents potential issues. It fits many model years, giving you flexibility if you own different GM cars or trucks. With compatibility across numerous popular models, you can trust this sensor to provide reliable and consistent performance, making it easier to keep your vehicle running smoothly and efficiently.