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🔧 See your serial signals in living color—test smarter, not harder!
The RS232 Breakout Tester LED Monitor is a compact, plug-and-play DB9 male-to-female breakout module designed for professional-grade serial RS-232 data link testing. Featuring 8 dual-color LEDs that instantly display logic states, DIP switch signal control, and broad OS compatibility, it empowers engineers and tech managers to diagnose and troubleshoot serial connections quickly without needing oscilloscopes or external power.








| ASIN | B08CDQ76Q8 |
| Best Sellers Rank | #56,613 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #106 in Network & Cable Testers |
| Brand Name | OONO |
| Color | Green,Red |
| Compatible Devices | Devices with RS-232 serial communication interface |
| Customer Reviews | 4.6 4.6 out of 5 stars (221) |
| Included Components | no |
| Item Weight | 0.27 g |
| Manufacturer | CZH-LABS |
| Model | OONO-F1023 |
| Part Number | OONO F-1023 |
| Power Source | Corded Electric |
| Specification Met | Rs232 |
| Style Name | DB9 MF |
| Unit Count | 1 Count |
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