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

Klein Tools

Klein Tools Wire Tracer Tone Generator Probe Set RJ45 60Hz Filter Digital Analog

SKU CH-4MA9-3BR2K

Traces active network cables digitally, isolates wire pairs in analog mode, tests continuity and polarity, maps pin-to-pin connections on RJ45, RJ11 and RJ12 cables, and filters 60 Hz interference

  • Product typeTest Equipment
  • Trace active-network cables quickly using digital signaling mode
  • Isolate individual wire pairs for voice, data, video and audio with analog mode
  • Verify pin-to-pin connections and shield integrity via wire-mapping LEDs
  • Securely clip onto unstripped wires using rugged angled bed-of-nails clips
  • Filter out 60Hz interference for accurate tracing results

Professional Cable Tracing Toolkit

The Klein Tools wire tracer set combines a tone generator and probe for network technicians and electricians who must locate cables, verify wiring, and test continuity on active or dead circuits. Digital and analog signalling modes cover live data networks and isolated voice, video, or audio pairs. Rugged angled bed-of-nails clips grip unstripped conductors without damage.

Interface and Signal Constraints

The RJ45 port accepts RJ45, RJ11, and RJ12 connectors for direct patch-cord testing, while the 60Hz filter rejects mains-frequency interference during tracing. Digital mode operates on energised networks without disrupting traffic; analog mode isolates individual pairs for clearer tone identification. Continuity and polarity results appear on clearly labelled LEDs for immediate reading.

Upgrade From Basic Toners

This set replaces single-mode toners that lack network-safe digital signalling or pair-level analog isolation. The jump is worth it when you need to trace live Ethernet without downtime, map pin-to-pin connections including shield detection, or work with unstripped wires using the ABN clips. Technicians limited to continuity-only testers gain full wire-mapping capability.

How it compares

Measured against everything we stock in Meters, Testers & Measuring Tools, at today’s prices. Recalculated every night.

Price $183.99
Pricier than about 75% of the 3,030 comparable items (median $54.99).

Specifications

Product
Product typeTest Equipment

Questions about this item

Which mode should I choose — digital or analog — for tracing cables on a live network?

Use digital mode to trace and locate cables on an active network and identify their paths and destinations effectively.

What does the 60 Hz filter do when I am tracing wires in a building?

The 60 Hz filter removes mains-frequency interference so the probe gives accurate tone tracing near power cables.

What cable types can I test through the RJ45 port on the tone generator?

The RJ45 port tests RJ45, RJ11 and RJ12 data cables for continuity, polarity and pin-to-pin wire mapping.

More in Meters, Testers & Measuring Tools

Similar items