16 Years of Experience Manufacturing Telecom Testers

Buy Now

Contact us if you wish to purchase in bulk for resale. The sales manager will respond as soon as possible

Noyafa NF-308 Wire Fault Locator Wire Tracker Network/Telephone wire/Coaxial Cable Tester. Cable Length Measurement

【Test cable type】Directly hunt 5E/6E/telephone wire/coaxial cable/USB cable and other cables. Verify RJ45 and BNC conductors.

【Fault checking】Check wiring error in 5E, 6E, coaxial cable, such as open circuit,short circuit, jumper wire, reverse connection. Locate the wiring or connection error.

【Length measurement】Measure cable length up to 1000m and determine the distance of open circuit and short circuit.

【Convenient design】Automatically time-delay shut off and backlight display function. Single board computer software watchdog design and reliable operation.

【Hub blink】Hub blink for locating network port by the flashing port light on Hub / Switch.

【Polarity test】polarity test function measure DC voltage (0.5-60 V)

【Certification】Passes RoHS, FCC, and CE compliance testing, and Noyafa is certified to the ISO 9001 standard.

【100% Affordable】Manufactured in China and a lot cheaper than competitor products with similar quality.

Buy It Now
Email US for Wholesale Purchase
  • Videos
  • Description
  • Technical Index
  • Packaging
  • FAQ
  • Manual

Wire Fault Locator NF-308

Item Specifics:

Is_customized : Yes

Brand Name : Noyafa

Model Number : NF-308

Place of Origin : Shenzhen.China

Port : RJ45, RJ11, BNC, USB

Test length : RJ45          

Wiremap Type : RJ45, BNC Cable

Tracking Type : RJ45, RJ11, BNC ,USB and Metal Cable

Other Function : Portflash function

Power : 9V Alkaline battery(not included)

Warranty : 1 Year

Technical Index
NF-308 Transmitter specifications
Indictor LCD 53x25 mm, with back light
Tone frequency 225 Hz
Max. distance of transmission 2 km
Max. distance of cable map 1 km
Max. working current Less than 70mA
Tone mode 2 Tone adjustable
Compatible connectors RJ11,RJ45,Coacial, USB
Max. signal voltage 15Vp-p
Function selection 3 position buttons & 1 power switch
Function and faults LCD display LCD display ( wiremap, Tone, short, , No adapter, Low  battery )
Cable map indication LCD (#1-#8)
Shielded indication LCD ( #9)
Voltage protection AC 60V/DC 42V
Battery Type DC9.0V(NEDA 1604/6F22 DC9V x 1pcs)
Dimension(LxWxD) 185x80x32mm
NF-308 Receiver specifications
Frequency 225kHz
The Max. working current Less than 70mA
Earjack 1
LED illumination 2
Battery Type DC9.0V(NEDA 1604/6F22 DC9V) x1pc
Dimension(LxWxD) 218x46x29 mm
NF-308 Remote unit specifications
Compatible connectors RJ11,RJ45,Coacial, USB
Dimension(LxWxD) 107x30x24mm



Q1: Are you trading company or manufacturer? 

A1: We're original manufacturer, which can help you get factory selling products with competitive prices.


Q2: How long is your delivery time? 

A2: Normally it is 3-10 working days if the goods are in stock. Or it is 10-25 working days if the goods are not in stock, it is according to your order quantity.


Q3: How is your after-sale service?

A3: Our experienced technical team is ready to respond you within 24 hours.


Q4: What is your MOQ? Do you provide customized services? 

A4: For sample order, there is no limit on MOQ. We will appreciate it if you'd like to purchase samples for testing first.


Q5: What is your terms of payment? 

A5: Payment≤5000USD, 100% in advance. Payment>5000USD, 30% T/T in advance, balance before shipment. Trade Assurance order payment. Paypal, Western Union etc. 


Q6: Can I become your sole distributor in my place? 

A6: We appreciate that. And we will discuss about your market situation together and after confirmation we will send you a contract with detail requirements about distributor terms and sales targets.

Q7: NF-308 can be used when connected to electricity? How much power is used when connecting to electricity? 

A7: Yes, the power is DC9-12v

Q8: When the switch is on, the 308 cable tester seems to be unable to find the correct line, and the network cable plugged into the switch can make a sound. How can this be solved? 

A8: If the environment is more complicated, you can use the port blinking function to test for cables.

Q9: NF-308 during the process of pairing, if the network cables PIN 1 & 3 are both disconnected. How will dispaly? If  PIN1 & 2 is short-circuited and PIN 3 & 5 is disconnected, how will it be displayed? Why is it displayed like that. 

A9: Because the wiremap test results of Nf-308 are displayed in pairs. Therefore, PIN1 & 3 disconnection will display PIN 1 & 2 & 3 & 6 disconnection, PING 1 & 2 short circuit will display PIN 1 & 2 short circuit, and PIN 3 & 5 disconnection will display PIN 3 & 4 & 5 & 6 disconnection.

Q10: What are functions of NF-308? 

A10: 1. Measure the length of the network cable, which can be calibrated, stored and retrieved;
2. Find network cable, telephone cable, BNC cable, USB-A cable and ordinary metal cable;
3. Test open, crossover, and short-circuit status of the network cable and BNC cable. This machine can determine which end of the crystal head is not done well when wiremap testing;
4. With POE hunting mode, port flashing function, Telephone line voltage test, positive and negative test function.

Q11: What is the hunting mode of the NF-308? Can it be loaded with 4-core cable? Can it be hunted on a gigabit switch? 

A11: The NF-308 has a anti-interference ability when hunting, and it is very accurate in the cable-intensive occasions.
However, there is no sound when hunting on 4-core cable is loaded or on gigabit switch.

Q12: The value can be saved after NF-308 is turned off after the length calibration? Measure the length after turning it on again. Is it the default parameter or the calibrated parameter?

A12: After turning off, turn on again to measure the length. The default parameters are the factory parameters.
If you need to use the calibrated parameters, you can save the parameters after calibration, and select to recall the parameters when using.


Contact Us

Need assistance with Noyafa products or services? We'll get you the help you need.

  • *
  • *

Wire Fault Locator NF-308

  • Tell us about your requirement
  • *Subject
  • *Describe in few words
  • *Email ID
  • Phone number
Send Inquiry