DR21A01 DC 12V 1‑Channel DPDT Signal Relay Module Polarity Reversal Switch Board
$ 13.62
1Adopting premium electronic components, superior performance, durable in use. 2Good contact performance, ensuring stable working. 3Working voltage DC 5V and DC 12V for your choice. 4Precision process, ensure for the durability. 5One channel DPDT signal relay module, widely used.
