Why you need this RS232 to RS232 Tester?

 

 

This is RS232 to RS232 tester is good for

- easy checking, every wire got a LED to let you know if any signal passing thru
- Color Blind people, because it blinks instead of showing you different color as other RS232 Tester.

Check it out at:

https://usb-fever.com/collections/usb-applications/products/rs232-tester-serial-db9-interface-port-mini-analyzer-loop-back-with-led-indicator

SKU: AK484-A167