16 Channel Relay Module DB9 PC Com UART Female Interface Serial Port Remote Control Switch RS232 R223C16 Delay Relay DC 12V

-6%

Dc 12v pc com db9 rs232 serial port delay relay arm mcu uart remote control switch board

1

1

5.0

-2%

Db9 female/male rs232 uart switch board dc 12v 232 relay module for plc led motor

0

1

16ch dc 12v serial port db9 uart rs232 relay module for plc pc com 3d printer led home lighting motor

0

0

Rs232 relay 12v 4ch db9 rs232 relay board remote control uart serial port switch for car motor

0

1

Dc 24v time delay relay module digital led delay timer module switch control relais cycle high performancetimer module

0

0

-0.7%

Dc 12v 1 ch channel 433mhz wireless relay module rf remote control switch heterodyne receiver controller board mcu rf frequency

3

5

4.7

-4%

Micro usb relay module 5v 4 channel relay module relay control panel with indicator 4 way relay output usb interface

0

0

-2%

Ne555 timer switch adjustable module dc 5v delay relay shield timing cpu 0~10s 0 to 10 second 2200w time delay relay module

2

3

5.0

Dc 12v led digital display timer trigger relay shield module switch delay relay module 0 999s 0 999m, voltage regulator, timer delay, -40 -85℃

1

0

Delay time micro usb 6-30v relay module timing switch control cycle timer lcd display intelligent control time board module

1

0

-1%

1 2 4 8 16 channel dc 5v relay module with optocoupler low level trigger expansion board for arduino

0

4

-14%

New 5v 10a micro usb 8 ch 8 channel relay upper computer icse014a 8-channel relay serial port board module 8 way

3

5

3.7

-0.7%

2021 obd2 16 pin cable wiring cord 1 male to 4 db9 interface for rs232 diagnostic tool serial port rs232 interface work elm327

0

1

Dc 12v delay relay shield ne555 timer switch adjustable module 0 to 10 second

0

0

-5%

Dc 5v-32v self-locking intelligence wifi relay module wireless wifi module things smart home remote control switch 5v 12v 24v

10

0

-7%

Dc 5v 4 channel relay module relay control panel with indicator 4 way relay output micro usb interface

0

0

-5%

Dc 12v timer delay relay module adjustment potentiometer led indicator delay turn on delay turn off timer switch module

1

2

-4%

Dc 5v-12v dc 7-32v usb 5v wifi wireless smart switch relay 1 2 4 channel 433mhz radio frequency remote control switch module

1

2

5.0

-9%

Diymore 315mhz / 433mhz 1 channel wireless rf relay module remote control receiver board dc 12v for arduino mcu

1

1

5.0

2 channel 5v delay relay module ch340 ch340g micro usb to ttl intelligent control switch board programmable for arduino computer

0

0