Dc 12V Rs232 Serial Port Delay Relay Switch Module Pc Com Db9 Arm Mcu Uart Remote Control Board 8727971221204

Dc 12V Rs232 Serial Port Delay Relay Switch Module Pc Com Db9 Arm Mcu Uart Remote Control Board 8727971221204

GreenZech

Description: - Working voltage: 12V. - (DC12V)Standby current (all relays closed) 16MA, relay open 47MA. - Two serial ports: RS232 DB9 interface,

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