4 Channel Relay Module, Industrial Grade Optocoupler Isolation Guide Rail Mount USB TTL Control Relay, USB CDC Class Virtual Serial Port Protocol or UART Protocol

4 Channel Relay Module, Industrial Grade Optocoupler Isolation Guide Rail Mount USB TTL Control Relay, USB CDC Class Virtual Serial Port Protocol or UART Protocol

• Relay Performance: This 4 channel relay offers simple control and fast speed response, having undergone 100000 engagement tests, features optocoupler isolation guard for enhanced security
• Rich Details: This 4 channel relay supports more commands, allows for status checks, with thickened circuit for safer load handling. It also includes reasonable indicator for convenient use
• Casing and Rail: The 4 channel relay module features ABS housing that is heat resisting, and utilizes 3.5cm universal guide rail, the thickened load circuit is designed to handle higher currents
• USB Relay Module: Featuring stable USB to serial chip and microcontroller, enabling control of the 4 channel relay on and off via serial commands sent from serial debugging software on a computer
• Usage Scenarios: Suitable for relay devices controlled through a USB interface, this 4 channel relay module is compact, convenient, easy to use and control, making it applicable to a wide range of scenarios