4 Channel 5V Relay Shield Module for Arduino UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi

4 Channel 5V Relay Shield Module for Arduino UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi
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sku: 32969902794
$1.64
Shipping from: China
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