1/2/4/8 channel 5V12V24V relay module with optocoupler isolation support high and low level trigger expansion board
$0.32 ~ $2.25
Price includes service fee; after ordering, we source and consolidate shipping from factories.
Estimated domestic shipping ≈ $0.59(1 pieces estimated, actual cost determined at checkout)
Specification model
Quantity
Total 12 specifications
