Best IO Modules of 2025

The Waveshare Digital I/O Module is designed for versatility and reliability. It supports a wide voltage range of 7 to 36V, ensuring stable operation in various environments. With the ability to configure addresses between 1 and 255, you can easily connect multiple devices on a single RS485 bus, simplifying your setup. The onboard voltage regulator and magnetical isolation enhance performance by providing stable isolated voltage and protecting against interference. Additionally, the resettable fuse and transient voltage suppressor safeguard your circuit from surges and spikes, giving you peace of mind in your applications.

The UIROBOT Compact I/O offers powerful data acquisition capabilities with its advanced DSP system, ensuring high performance and fault tolerance. You can easily connect various devices using its CAN Bus interface, making it ideal for precise data input and output. The module also includes robust safety features, such as protection against short circuits and overvoltage, allowing you to work confidently. With 16 digital inputs and outputs, along with a quadrature encoder interface, you have the flexibility to configure your system to meet your specific needs, all in a compact and portable design.

The Waveshare Relay Module offers versatile control with its configurable device address, allowing you to connect multiple devices on an RS485 bus. You can enjoy the convenience of its flash-on and flash-off function, which lets you activate a relay for a set period before it automatically turns off. This module also features onboard power supply isolation for stable voltage, eliminating the need for an additional power source. Furthermore, with magnetic isolation, you can rely on high reliability and low power consumption, ensuring your system runs smoothly without interference.

The SIEMENS LOGO! Relay is a logic module designed for 12/24VDC/relay applications. With 8 digital inputs (4 analog inputs) and 4 digital outputs, this module offers flexibility for various automation needs. It comes with a memory capacity of 400 blocks and is modular expandable, allowing for future upgrades. Additionally, it features Ethernet connectivity for easy integration into network systems. The SIEMENS LOGO! Relay simplifies control tasks, enhances monitoring capabilities, and ensures efficient operation for users.

The Grayhill AC Input Module is designed to efficiently handle AC input with a maximum current of 8 mA and an input voltage range of 90 to 140 V. This flexibility allows you to integrate it easily into various systems without worrying about compatibility. Additionally, it provides an output voltage of 3 to 6 V, ensuring that you have the necessary power for your applications. With a maximum output current of 10 mA, this module can effectively support your devices, making it a convenient choice for your electrical projects.

The EBYTE I/O Module is a versatile device that supports both Modbus RTU and Modbus TCP protocols, making it compatible with various configuration software, PLCs, and touch screens. This flexibility allows you to easily integrate it into your current systems. It features RJ45 connections for up to four host accesses, which enhances your networking capabilities. Additionally, the module includes an OLED display to provide real-time status updates, ensuring you can monitor operations effortlessly. With two analog inputs and four dry switch inputs, it offers a reliable way to gather data and control devices effectively.

The Hyuduo IO Expansion Module offers incredible versatility with its 16 channels, allowing you to easily configure each channel as either an input or output. You can enhance your project by using pull-up resistors and enabling interrupts for input channels. With a high-speed I2C interface, this module supports various frequencies, ensuring smooth data transfer. Additionally, you can connect up to 8 modules, expanding your I/O capabilities significantly. This means you can manage multiple devices effortlessly, making your projects more efficient and effective.

The ArecaIoT IO Module features four channels for 4-20mA inputs with impressive precision of 0.1% and a 12-bit resolution. This allows you to monitor and control various sensors with high accuracy, enhancing your data reliability. It operates on a wide power supply range of DC9-48V, making it versatile for different setups. Communication is facilitated through RS485 and RS232 ports using the Modbus RTU protocol, ensuring seamless integration with your existing systems. Additionally, its robust design can withstand extreme temperatures from -40℃ to 70℃, making it suitable for challenging environments.

The HYTROL IO Module offers a versatile range of features that enhance your control system. Operating within a voltage range of 10-30 V DC, it provides flexibility for various applications. With a current output of 1-5 MA, you can ensure reliable performance for your devices. The auxiliary functionality allows for seamless integration with other components, making it easier to expand your system. Additionally, the EZ Logic feature simplifies programming, allowing you to set up and manage your configuration with ease. This module is designed to make your automation tasks more efficient and user-friendly.

The WAGO 8 Channel Output is a versatile digital output module designed for use with WAGO's modular input and output systems. With a current rating of 25, it ensures reliable performance for various applications. The compact design, measuring just 12 mm in width and 100 mm in depth, allows for easy integration into existing systems without taking up much space. Operating at a voltage rating of 24, this module is RoHS compliant, making it a safe choice for environmentally conscious users. By incorporating this module, you can enhance your system's efficiency and reliability.