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1 Channel 5V/12V/24V 5Ma Relay Module High And Low Level Trigger, Red Board( 5V): Amazon.com: Industrial & Scientific
1 Channel 5V/12V/24V 5Ma Relay Module High And Low Level Trigger, Red Board( 5V): Amazon.com: Industrial & Scientific
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Relay Board, Relay Module 4 Channel with Optocoupler Low Level Trigger Expansion Board for 5V/12V/24V(12V): Amazon.com: Industrial & Scientific
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DC 5V 12V 24V 30A High Power 1-Channel Relay Module with Optocoupler H/L Level Triger (12V): Amazon.com: Industrial & Scientific
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1 Channel Relay Module, 5V 1 Channel Relay Module Relay Board with Optocoupler Low Level Trigger Expansion Board for Arduino 5V/12V/24V(5V) : Amazon.co.uk: Business, Industry & Science
