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1 2 4 8 16 Channel DC 12V Relay Module with Optocoupler Low Level Trigger Expansion Board for arduino Raspberry Pi

USD 0.53USD 0.66

1 2 4 8 16 Channel DC 12V Relay Module with Optocoupler Low Level Trigger Expansion Board for arduino Raspberry Pi

Description
Specification
10Pcs BT137-600E TO220
USD 3.91USD 4.20
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