4DI-DO 433M Wireless 4CH RS485 Bus Relay Module RF Master-Slave Networking Remote IO Swicth Board for PLC Industrial Equipment

4DI-DO 433M Wireless 4CH RS485 Bus Relay Module RF Master-Slave Networking Remote IO Swicth Board for PLC Industrial Equipment
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sku: 1005006567781429
$22.34
Shipping from: China
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