1 UART Serial Port to RS485 Converter. Type:TTL turn RS485. The module is fully considered mine design,it can play a very good anti-jamming and anti-lightning effect, more secure. With RXD, TXD signal indicator light, monitor send and receive status.
eBay
Has RXD, TXD signal indicator light, monitor send and receive status.
eBay
Has RXD, TXD signal indicator light, monitor send and receive status.
eBay
Has RXD, TXD signal indicator light, monitor send and receive status.
eBay
Has RXD, TXD signal indicator light, monitor send and receive status.
eBay
Has RXD, TXD signal indicator light, monitor send and receive status.
eBay
Has RXD, TXD signal indicator light, monitor send and receive status.
eBay
Has RXD, TXD signal indicator light, monitor send and receive status.
eBay