2pcs DC 12V Relay Module 4 Channel Relay Board Shield with Optocoupler Isolation Suport High/Low Level Trigger
Connector Type Through Hole Contact Material Nickel Contact Type Normally Closed C..
$8.99
4pcs DC 24V Relay Module 1 Channel Relay Board with Optocoupler Isolation Support High or Low Level
Connector Type Screw Contact Type Normally Closed, Normally Open Current Rating 10 Amp..
$6.99
4pcs Relay Module 24V Relay Board 2 Channel with Optocoupler Support High or Low Level Trigger
Connector Type Through Hole Contact Material Nickel Contact Type Normally Open, Normal..
$8.99
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