4 channel relay module

• SMAKN® SMAKN Blue SRD-12VDC-SL-C 4 Channel DC 12V High Level Power Relay Module Board

  

  Go to see$12.99

• SainSmart 8-Channel 5V Solid State Relay Module Board for Arduino Uno Duemilanove MEGA2560 MEGA1280 ARM DSP PIC

  

  Go to see$27.99

• SainSmart 8-Channel Relay Module

  

  Go to see$9.89

• SainSmart 2-Channel Relay Module

  

  Go to see$4.00

• ZITRADES (TM) 16-Channel 12V Relay Module for Arduino DSP AVR PIC ARM

  

  Go to see$20.22

• CanaKit UK1104 - 4-Channel USB Relay Board with 6-Channel A/D Interface (Assembled Module)

  

  Go to see$59.95