2 Channels (5V) Opto-Isolated Relay Module
SGD $ 8.50
4 Channel 5V Relay Module
SGD $ 14.50
5V Single Channel Opto Isolated Relay Module
SGD $ 4.90
Kitronik Relay Control Breakout Board
SGD $ 24.30
Modbus RTU Relay (EN)
SGD $ 49.90
Relay Shield v3.0
SGD $ 31.94
TAKAMISAWA RY5W-K 5V DPDT Signal Relay
SGD $ 3.30
USB Control 1 Channel Module 5V Relay Module
SGD $ 10.00
USB Control 2 Channel Module 5V Relay Module
SGD $ 12.00
USB Control 4 Channel Module 5V Relay Module
SGD $ 18.00
USB Control 8 Channel Module 5V Relay Module
SGD $ 28.00