Waveshare Industrial-Grade Isolated 4-Channel RS485 Hub with Rail-Mount Support, Wide Baud Rate Range, Expanding 4 RS485 Sub-Ports via 1 RS485 Master Port, Featuring Isolation and Signal Relay
YDuupxe 16 Channel Relay Module, PCB Material with WROOM Integration, Smart Home Automation for Projects 5V DC Control and 4M Flash Memory
LUCKDANO Relay Module 1 1 Channel Optocoupler Relay Module Board, High & Low Actuator, 5V-24V Wide Operating Voltage, Fault-tolerant Design, Easy-to-Use Interface (24V)
LUCKDANO Relay Module 1 1 Channel Optocoupler Relay Module Board, High & Low Actuator, 5V-24V Wide Operating Voltage, Fault-tolerant Design, Easy-to-Use Interface (12V)
LUCKDANO Relay Module 1 1 Channel Optocoupler Relay Module Board, High & Low Actuator, 5V-24V Wide Operating Voltage, Fault-tolerant Design, Easy-to-Use Interface (5V)
8 Channel Optocoupler Relay Module Board, Patch Photocoupler Isolation, 5V/12V/24V, High/Low Level, LED Indicator Lights, for DIY Projects (12V)
