Product · United States

BAAU R421C32 DC12V 32 Channels Modbus RTU RS485 Bus Relay Module UART Serial Port Board For PLC LED Home Automation Door Lock

Lowest price: $49.51 · 1 store · price range $79.85 … $79.85 · 38% off the list price

Price history: 3 daily prices tracked since 2026-10-20; lowest $48.71, highest $49.51.

Price last confirmed by the store feed on 2026-10-30.

BAAU R421C32 DC12V 32 Channels Modbus RTU RS485 Bus Relay Module UART Serial Port Board For PLC LED Home Automation Door Lock

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Store 1 (US)$49.51In stockGo to store

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