30pcs TTL to RS485 RS485 to TTL Bilateral Module UART Port Serial Converter Module 3.3/5V Power Signal

Features 1 Compatible with 3 3V and 5 0V power supply 2 Compatible with 3 3V and 5 0V signal 3 Absolute using imported chips industrial design anti interference ability while using more effective mine design can be used in the industrial field and harsh field environments the working temperature of 40Celsius to 85 Celsius transmission distance up to 1 kilometer made with 850 meters of cable F1 5 tests recommended in the 800 meters more than 800 m please add repeaters 4 Semi hole pads onboard module thin PCB having a thickness of 0 8mm 5 Has RXD TXD signal indicator light monitor send and receive status Package includes 30 x Converter Module