We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Handheld network cable tester with LCD screen, RJ45 and RJ11 ports, tone generator and multimeter functions

BFKK

BFKK Network Cable Tester Optical Power Meter PoE RJ11 RJ45 Tone Generator CAT5 CAT6 Multimeter 15000mAh 3.7V

SKU CH-00J2-FMKKW

Tests Ethernet and telephone cables with PoE, optical power meter, tone generator and full digital multimeter functions, powered by a 15000 mAh 3.7 V battery lasting 10 hours

  • Tests PoE voltage and polarity up to 60 VDC
  • Measures cable length from 2.5 m to 200 m
  • Detects live wires safely with NCV function
  • Combines cable tester, optical power meter and digital multimeter
  • Runs 10 hours on 15000 mAh 3.7 V battery with Type-C charging

Network cable tester with optical power meter

This handheld tool combines a network cable tester, an optical power meter and a digital multimeter in one unit. It suits electricians, network installers and IT technicians who need to verify copper and fibre links on site. The device tests RJ45, RJ11 and BNC cables while also measuring voltage, current, resistance and temperature.

PoE verification up to 60 VDC

The tester checks Power over Ethernet polarity, voltage and power-supply mode on standard PoE switches. It automatically detects 10M, 100M and 1000M link speeds during the test. The optical power meter identifies six fibre wavelengths and displays the detected frequency on the LCD screen.

Cable length measurement from 2.5 m to 200 m

Connecting a cable to the length port flashes the corresponding port indicator and reports distance within that range. The 15000 mAh 3.7 V lithium battery provides up to 10 hours of operation and recharges via Type-C. The multimeter functions cover AC and DC voltage, current, continuity, diode and NCV detection for basic electrical safety checks.

Highlights

  • Tests PoE voltage and polarity up to 60 VDC
  • Measures cable length from 2.5 m to 200 m
  • Detects live wires safely with NCV function
  • Combines cable tester, optical power meter and digital multimeter
  • Runs 10 hours on 15000 mAh 3.7 V battery with Type-C charging

Specifications

No published specifications for this item yet.

Questions about this item

Which version should I choose between the 10, 100 and 1000M PoE detection modes?

The tester automatically detects and switches between 10M, 100M and 1000M modes, so you do not need to select a version; it covers all three speeds in one unit.

What does the 60VDC PoE withstand rating mean when I am testing a live switch?

It means the tester can safely handle Power over Ethernet voltages up to 60VDC while checking cable mapping, polarity and PSE type on an active PoE switch.

What cable-length range does the LENGTH/FLASH port actually measure?

The length measurement function works from 2.5 m up to 200 m; connect the cable to the LENGTH/FLASH port and the port indicator flashes to confirm the reading.

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.