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Description:
USB relay board is one kind of very popular switch module. You can use it contro..
$3.90
Description:
This is a USB/Wireless Timer Relay Module, It allows computer control..
$29.00
Description:
Relay board is one kind of very popular switch module. You can use it control an..
$4.90
This small size Bluetooth 4.0 TTL transceiver module allows your target device communicate w..
$6.80
Description:
This USB/Wireless Relay Module allows computer control switching of extern..
$28.00
Description:
TSIR04 is a USB relay with optically isolated inputs and OLED display and ..
$38.00