Relay and Digital I/O

This board module reads 5-24 V digital voltage signals via Modbus. It can be read easily from PLCs, industrial PCs, and similar host devices.

TDFA30303 is a simple USB-controlled relay board. It allows you to switch 12/24VDC, or 100/250VAC loads via USB. It can be controlled from both Windows and Linux.

TDFA30301 is a simple USB-controlled relay board. It allows you to switch 12/24VDC, or 100/250VAC loads via USB. It can be controlled from both Windows and Linux.

The TDFA50607 is a 7-channel USB digital I/O output board. It allows you to output 12/24V signals to various external devices using simple commands. Thanks to electrical isolation, it offers excellent safety and noise immunity.

A simple RS232C controlled relay board. Can turn on/off voltages up to 250V AC/28V DC and currents up to 6A.

A simple RS232C controlled relay board. Can turn on/off voltages up to 250V AC/28V DC and currents up to 6A.

TDFA50507 is a 7-channel USB digital IO output board. 12/24V signals can be output to various devices with simple commands. With electrically isolation it has safety and noise resistance.

TDFA30608 is an 8 channel USB digital IO input board. You can easily read signals from various external devices from your own programs. Because it is electrically insulated, it has excellent safety and noise resistance.

IWT313-USB is a relay control module with USB connection. Compatible with on/off of DC12V, DC24V, AC 100V, etc. It can be easily controlled from Windows or Linux using a dedicated command line interface.

A general-purpose USB-controlled relay module. 12V, 24V, AC 100V, etc. can be turned on and off via USB. A free control command line program is available.