![](https://www.danbit.dk/13186-large_default/rs232-tester-with-leds-for-visual-control-of-rxtx-and-control-signals.jpg)
![TEST RS232 with Breakout,...](https://www.danbit.dk/20868-home_default/test-rs232-with-breakout-led-monitor-db9-male-to-female.jpg)
TEST RS232 with Breakout, LED Monitor , DB9 Male to Female
Easy to use
DIP switch for disconnecting and connecting signal (easy to connect external cables/props)
Branch too high signal
Red for low signal
RS232 8 signals DCD, RXD, TXD,, DTR, DSR, RTS, CTS, RI.