Find any Amazon.com product's deals and best prices with our free Amazon deal finder and price tracker. Simply paste the product link (URL) or search by name in the box above. You'll get full product information, Deal Score, and all current deals. Shop smarter with the best Amazon deals finder in the USA.
x
Sorry, Something went wrong!
RS232 DB25 Male to Female Breakout Tester LED Monitor Module
✅ In stock
⭐ Lowest price we've tracked
F
Grade
Analysis Confidence
73%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 23, 2026 8:54 AM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- 💰The current price sits right around what this item typically fetches.
- 🏷️The retail sticker price has been slashed by 84% — a steep markdown from the official listing.
- 📉Our analysis places this at the most competitive price point we have ever tracked for this product — an exceptional moment to buy.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
0/20
Deal Strength
20/20
Momentum
4/10
📝 Product Overview
🏪 Sold by
Electronics-Salon.
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓Connect in series with any DB25 RS-232 interface for testing a serial RS-232 data link. Simple and easy, no oscilloscope is needed. DIP switch can setting disconnect or reconnect any signal, and support external probe test signal from male or female position. DB25 Connector Pin Assignment: Pin8 - DCD, Pin3 - RXD, Pin2 - TXD, Pin20 - DTR, Pin7 - GND, Pin6 - DSR, Pin4 - RTS, Pin5 - CTS, Pin22 - RI.
✓8 Bi-color (red and green) LEDs indicate the logic states for respective data lines. Green for logic HIGH and red for logic LOW. Full RS232 spec compliant with LEDs for all 8 signals: DCD, RXD, TXD, DTR, DSR, RTS, CTS, RI.
✓No external power required. No driver required. Plug and play. Jack sockets(nuts) on the tester can be unscrewed easily(with metal shell held in place) if needed to mate with another connector that has jack sockets.
✓OS Compatibility: Windows 98, Me, XP, 2000, 2003, CE, Vista, Windows 7, and Windows 8 as well as Linux and Mac OS 10.X, ect.
✓Typical application scenarios: Watching the TXD and RXD LEDs either changing states or flashing to know data transferring direction: from machine to computer or from computer to machine. Verifying TXD/RXD wires should be wired crossed(swap pin2 and 3) or straight through by observing TXD and RXD LEDs at a rest state. etc...
⚙️ Specifications
Brand
OONO
Power Source
Corded Electric
Style
Modern
Color
Red, green
Item Weight
0.27 g
Specification Met
Rs232
Manufacturer
CZH-LABS
Package Dimensions
4.69 x 3.19 x 1.26 inches
ASIN
B09T3PNYYP
Date First Available
January 25, 2015
Best Sellers Rank
See Top 100 in Industrial & Scientific