2CH DC 9V 12V RS232 Relay Control Switch &amp USB to RS232 DB9 PC UART Serial Port TB351*1+TB052*1 For Smart Home

2CH DC 9V 12V RS232 Relay Control Switch &amp USB to RS232 DB9 PC UART Serial Port TB351*1+TB052*1 For Smart Home
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sku: 1005005879766619
$13.40
Shipping from: China
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