Relay Module
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8 Channel 24V HID Driverless USB Relay USB Control Switch Computer Control Switch PC Intelligent Control Relay Module
$28.38
ZK-TD2 5V 12V 24V Time Delay Relay Module Trigger Cycle Timing Industrial Anti-overshoot Timer Relay
$8.10
DC 12V RS232 Serial Port Delay Relay Switch Module PC COM DB9 ARM MCU UART Remote Control Board
$14.99