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XH-M213 5V 12V 1CH Relay Module Optocoupler Isolation High Level Trigger Relay Switch Board
3 reviews
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FRM01 DC5/12/24V 1 Channel Multifunction Relay Module Loop Delay Timer Switch Self-Locking Timing Board
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10Pcs 5V Relay Module 5-12V TTL Signal 1 Channel High Level Expansion Board
57 reviews
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with TVS protected DC 12V 8Ch RS485 Relay Module Modbus RTU 03 06 16 Function Code DIN Shell Switch Board
0 review
2CH Channel Optocoupler Isolation Relay Module 5V/12V/24V SCM PLC Signal Amplifier Board
5 reviews
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DC 5V 7.5V 9V 2Ch RS232 Relay Board Remote Control USB PC UART COM Serial Port
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YYE-1 5V/12V/24V RS232 Serial Port Control Relay Module MCU MAX232 USB Control Switch Board
0 review
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DC 5V 12V Channel Modbus Rtu UART TTL232 IO Control Module for Arduiuo MEGA Relay PLC Breadboard
0 review
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SW-520 Tilt Sensor Relay Module 12V Equipment Tilt Dump Protection Alarm Trigger Board
5 reviews
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YYI-2 5V 12V 24V Current Detection Module Current Limit Overcurrent Motor Blocking Protection Board Current Sensor Relay Board 5-24V DC
2 reviews
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3pcs DC 12V RS232 Serial Port Delay Relay Switch Module PC COM DB9 ARM MCU UART Remote Control Board
0 review
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5Pcs 5V Relay 5-12V TTL Signal 1 Channel Module High Level Expansion Board
174 reviews
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3Pcs 5V Relay 5-12V TTL Signal 1 Channel Module High Level Expansion Board
206 reviews
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12V 32CH Channel RS485 Relay Modbus RTU Protocol Serial Remote Control Switch PLC Control Board
2 reviews
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DR25E01 DC 5V 9V 12V 24V 3-5A Flip-Flop Latch DPDT Relay Module Bistable Self-locking Switch Low Pulse Trigger Board for Motor LED PLC
12 reviews
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DC 12V 2 Channel RS232 Relay Module Board Remote Control USB PC UART COM Serial Ports for Smart Home
3 reviews
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N223B08 8CH DC 12V RS232 Relay Module Serial Port Remote Control Switch PLC PLC IO Expansion Board
0 review
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DC 12V RS232 Serial Port Delay Relay Switch Module PC COM DB9 ARM MCU UART Remote Control Board
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