1 Channel 5V Active Low Relay Module
SGD $ 1.50
2 Channel 5V Active Low Relay Module
SGD $ 3.00
315Mhz remote relay switch kits - 2 channels
SGD $ 33.80
4 Channel 5V Relay Module
SGD $ 14.50
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