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๐ See Your Serial Signals Like Never Before โ Donโt Debug in the Dark!
The OONO RS232 Breakout Tester LED Monitor is a compact, driver-free DB9 male-to-female module that visually displays all 8 RS-232 signal lines with dual-color LEDs. Designed for professionals needing quick, reliable serial interface diagnostics, it features DIP switch control for signal isolation and supports broad OS compatibility, making it an essential tool for efficient serial communication troubleshooting.








| ASIN | B08CDQ76Q8 |
| Best Sellers Rank | #30,798 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #55 in Network & Cable Testers |
| Brand | OONO |
| Brand Name | OONO |
| Color | Green,Red |
| Compatible Devices | Devices with RS-232 serial communication interface |
| Customer Reviews | 4.6 out of 5 stars 224 Reviews |
| Included Components | no |
| Item Weight | 0.27 g |
| Manufacturer | CZH-LABS |
| Model | OONO-F1023 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | OONO F-1023 |
| Power Source | Corded Electric |
| Specification Met | Rs232 |
| Style | DB9 MF |
| Style Name | DB9 MF |
| Unit Count | 1 Count |
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