2pcs TTL to RS485 Adapter Module 485 to TTL 3.3V/5.0V Signals Serial Port Power Supply Converter & Indicator Lights for Arduino

2pcs TTL to RS485 Adapter Module 485 to TTL 3.3V/5.0V Signals Serial Port Power Supply Converter & Indicator Lights for Arduino
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sku: 1005003142224059
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$2.21
Shipping from: China
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