--- product_id: 413612361 title: "Network Cable Tester,Line Finder with Probe Tone,Wire Tracker Multifunction,RJ11 RJ45 Cable Tracer,Telephone Line Test,Ethernet LAN Network Cat5 Cat6 Cable Maintenance Collation-Blue" brand: "mastfuyi" price: "AED 12" currency: AED in_stock: true url: https://www.desertcart.ae/products/413612361-network-cable-tester-line-finder-with-probe-tone-wire-tracker store_origin: AE region: United Arab Emirates --- # Telephone line status & continuity test Multifunction cable tracing Pin-by-pin line fault detection Network Cable Tester,Line Finder with Probe Tone,Wire Tracker Multifunction,RJ11 RJ45 Cable Tracer,Telephone Line Test,Ethernet LAN Network Cat5 Cat6 Cable Maintenance Collation-Blue **Brand:** mastfuyi **Price:** AED 12 **Availability:** ✅ In Stock ## Summary > 🔧 Master your network game with precision and confidence! ## Quick Answers - **What is this?** Network Cable Tester,Line Finder with Probe Tone,Wire Tracker Multifunction,RJ11 RJ45 Cable Tracer,Telephone Line Test,Ethernet LAN Network Cat5 Cat6 Cable Maintenance Collation-Blue by mastfuyi - **How much does it cost?** AED 12 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ae](https://www.desertcart.ae/products/413612361-network-cable-tester-line-finder-with-probe-tone-wire-tracker) ## Best For - mastfuyi enthusiasts ## Why This Product - Trusted mastfuyi brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trace Like a Pro:** Quickly identify and trace RJ11/RJ45 cables without damaging insulation—stay ahead in network troubleshooting. - • **Compact Powerhouse:** Lightweight, durable, and portable design fits perfectly in your toolkit for on-the-go network maintenance. - • **Know Your Line Status:** Test telephone line conditions—idle, ringing, busy—and verify TIP/RING polarity for flawless telecom diagnostics. - • **Versatile Connectivity:** Supports RJ11, RJ45, power lines, speaker wires, and more with included alligator clip adapter—one tool, endless possibilities. - • **Pinpoint Faults Instantly:** Detect open circuits, shorts, wiring errors, and reversed polarity with clear LED indicators up to 30m away. ## Overview The Mastfuyi Network Cable Tester FY869 is a multifunctional tool designed for professional-grade cable tracing, telephone line testing, and fault detection. Compatible with RJ11 and RJ45 cables, it offers pin-by-pin mapping, continuity checks, and line status diagnostics. Its portable, durable design and versatile adapters make it an essential device for IT pros and network technicians maintaining Cat5/Cat6 Ethernet and telephone lines. ## Description Network Cable Tester,Line Finder with Probe Tone,Wire Tracker Multifunction,RJ11 RJ45 Cable Tracer,Telephone Line Test,Ethernet LAN Network Cat5 Cat6 Cable Maintenance Collation-Blue: desertcart.com: Industrial & Scientific ## Features - Cable Sequence Calibration:It can detect the cable sequence, open circuit, short circuit, wrong pair and reverse connection of the network cable - RJ45 RJ11 Cable Tracking:RJ11 and RJ45 cables can be found through transmitter. It is simple and fast to find the line without stripping the outer skin of the cable - Telephone Line Status Detection: It can detect the status of the working telephone line (idle, ringing, off-hook) and discriminate TIP or RING line - Detect Cable Level and Positive and Negative Polarity: Use the transmitter to detect the DC level or positive and negative polarity of the line - Transmitter Undervoltage Indication：Rotate the function knob of the transmitter to the “SCAN” position. When the transmitter's battery is lower than the working voltage, the cable finding function indicator “SCAN” on the transmitter will flash. When the indicator is flashing, please Replace the battery in time ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09M6YPWTJ | | Best Sellers Rank | #31,647 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #53 in Network & Cable Testers | | Brand | Mastfuyi | | Brand Name | Mastfuyi | | Color | US -BLUE | | Customer Reviews | 4.3 out of 5 stars 982 Reviews | | Included Components | Digital Multimeter, Test Leads, AAA Batteries, Carrying Case, User Manual | | Item Weight | 200 Grams | | Manufacturer | Mastfuyi | | Measurement Type | Multimeter | | Min. Operating Voltage | 0.6 Volts | | Minimum Operating Voltage | 0.6 Volts | | Model | FY8233E | | Part Number | FY8233E | | Power Source | Battery Powered | | Specification Met | Ul 61010-1, Iec 61010-2-030 | | Style | Blue | | Style Name | Blue | | UPC | 728990021767 | | Upper Temperature Rating | 60 Degrees Celsius | ## Product Details - **Brand:** Mastfuyi - **Color:** US -BLUE - **Item Weight:** 200 Grams - **Power Source:** Battery Powered - **Style:** Blue ## Images ![Network Cable Tester,Line Finder with Probe Tone,Wire Tracker Multifunction,RJ11 RJ45 Cable Tracer,Telephone Line Test,Ethernet LAN Network Cat5 Cat6 Cable Maintenance Collation-Blue - Image 1](https://m.media-amazon.com/images/I/71PnJfezZgL.jpg) ![Network Cable Tester,Line Finder with Probe Tone,Wire Tracker Multifunction,RJ11 RJ45 Cable Tracer,Telephone Line Test,Ethernet LAN Network Cat5 Cat6 Cable Maintenance Collation-Blue - Image 2](https://m.media-amazon.com/images/I/81WshnbcwmL.jpg) ![Network Cable Tester,Line Finder with Probe Tone,Wire Tracker Multifunction,RJ11 RJ45 Cable Tracer,Telephone Line Test,Ethernet LAN Network Cat5 Cat6 Cable Maintenance Collation-Blue - Image 3](https://m.media-amazon.com/images/I/81Vb+aBYxbL.jpg) ![Network Cable Tester,Line Finder with Probe Tone,Wire Tracker Multifunction,RJ11 RJ45 Cable Tracer,Telephone Line Test,Ethernet LAN Network Cat5 Cat6 Cable Maintenance Collation-Blue - Image 4](https://m.media-amazon.com/images/I/81RYArlH4fL.jpg) ![Network Cable Tester,Line Finder with Probe Tone,Wire Tracker Multifunction,RJ11 RJ45 Cable Tracer,Telephone Line Test,Ethernet LAN Network Cat5 Cat6 Cable Maintenance Collation-Blue - Image 5](https://m.media-amazon.com/images/I/81czp0cW-GL.jpg) ## Questions & Answers **Q: does it measure capacity?** A: This does measure capacitance **Q: Does it measure frequency?** A: Inexpensive multimeter that measures AC V - DC V - Resistance - Amperage - Checks Diodes... But if you're asking if it is a oscilloscope... No **Q: Can this safely test fuses for continuity?** A: Of course it can. Set the dial on the meter to the exact opposite of the off position. Then move it one click to the left. When you touch the probes together it should make a sound. Now touch the probes to the opposite ends of the fuse. If it's good you will hear the same sound. **Q: Are the batteries already installed in the device?** A: batteries included but not installed ## Frequently Bought Together - Mastfuyi Digital Multimeter, True RMS 6000 Counts, Multi Tester, NCV Electrical Tester, Backlit LCD Display, Auto-Ranging Tests, Voltage, Current, Resistance, Continuity, Diode, Capacitance - United Scientific™ MSL3X1 Pre-Cleaned Glass Microscope Slides, 3" X 1", Pack of 72 - Hydrion pH Strips ph range 1-12 100 strips per vial --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ae/products/413612361-network-cable-tester-line-finder-with-probe-tone-wire-tracker](https://www.desertcart.ae/products/413612361-network-cable-tester-line-finder-with-probe-tone-wire-tracker) --- *Product available on Desertcart United Arab Emirates* *Store origin: AE* *Last updated: 2026-08-11*