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Klein Tools Scout Pro Max Network Cable Tester with Remote Set (VDV501-770)

A color-screen voice, data and video cable tester that maps RJ45, RJ11/12 and coax wiring, measures cable length with TDR, identifies up to 20 locations, tests PoE and reports advertised link speed.

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Klein Tools Scout Pro Max VDV501-770 network cable tester with its included ID remotes and cables
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Photo: Klein Tools

Key facts

Cable types
Data (RJ45, shielded or unshielded, Cat 6), voice (RJ11/RJ12) and coax (F connector)
Wiremap results
Opens, shorts, miswires and crossovers on shielded or unshielded cable
Length (TDR)
Coax 0 to 2,000 ft (610 m), data 0 to 3,000 ft (914 m), electrical 0 to 1,000 ft (305 m), per the manual
Length accuracy
±(2% + 3 ft or 1 m) with a known velocity of propagation and consistent cable
PoE
Tests IEEE 802.3af, 802.3at and 802.3bt (Types 1 to 4) and passive PoE up to 60 V; identifies Mode A, B and 4-pair
Active network
Shows advertised speeds of 10/100/1G/10GBASE-T, half or full duplex; hub blink
Location ID
Up to 20 locations with the included remotes (20 RJ45 LanMap and 20 coax CoaxMap remotes)

Which version should you buy?

This page covers: VDV501-770 Scout Pro Max with remote set.

  • Scout Pro Max with remote set

    This page

    Model: VDV501-770

    What differs
    Tester with twenty RJ45 and twenty coax location remotes. The digital tracing probe is sold separately.
    Best for
    Testing and identifying data, phone and coax cable runs.
    Check price on Amazon

  • Scout Pro Max replacement test remote only

    Model: VDV770-770

    What differs
    One replacement test remote; it needs the Scout Pro Max tester and is not a complete tester set.
    Best for
    Owners replacing a missing or damaged self-storing test remote.

Watch out

  • Digital tone generation does not mean a probe is included; VDV501-770 needs the separate VDV500-223 probe.
  • VDV770-770 is a replacement test remote, not the tester or the location-remote set.
  • The candidate 80179 listing is labelled as a probe set; check its full contents before treating it as the VDV501-770 package.

Why people pick it

  • Measures length and distance to a fault with TDR, not just pass or fail
  • Tests PoE classes up to 802.3bt and shows the speed a switch port advertises
  • Identifies up to 20 runs with the included remotes
  • Saves results and exports a CSV over USB-C with no software

Know before you buy

  • A verification tool, not a certifier: it can't certify Cat 6 or 6A performance to TIA limits
  • Digital toning needs a separate probe
  • Klein's page headline says 2,000 ft while the manual gives 3,000 ft for data cable

Full specifications

Cable typesData (RJ45, shielded or unshielded, Cat 6), voice (RJ11/RJ12) and coax (F connector)
Wiremap resultsOpens, shorts, miswires and crossovers on shielded or unshielded cable
Length (TDR)Coax 0 to 2,000 ft (610 m), data 0 to 3,000 ft (914 m), electrical 0 to 1,000 ft (305 m), per the manual
Length accuracy±(2% + 3 ft or 1 m) with a known velocity of propagation and consistent cable
PoETests IEEE 802.3af, 802.3at and 802.3bt (Types 1 to 4) and passive PoE up to 60 V; identifies Mode A, B and 4-pair
Active networkShows advertised speeds of 10/100/1G/10GBASE-T, half or full duplex; hub blink
Location IDUp to 20 locations with the included remotes (20 RJ45 LanMap and 20 coax CoaxMap remotes)
ToneAnalog tones at 800 to 1500 Hz; digital tone needs the VDV500-223 probe (sold separately)
TelephonePOTS tip and ring voltage test
ResultsStores up to 200 tests; exports a CSV file over USB-C (shows up as a folder on a computer)
DisplayFull-color backlit screen
Input protection60 V peak 50/60 Hz AC or DC; only the RJ45 port is meant for PoE-powered cables
Power3 × AA; about 15 hours active, 1 year standby
Drop protection2 m (6.6 ft)
Size4 × 7.2 × 1.6 in (10.16 × 18.29 × 4.06 cm)
Weight15.8 oz (448 g) with batteries
In the boxTester, USB-C to USB-A cable, coax F to bed-of-nails cable, two each of RJ11, RJ12 and RJ45 Cat 6 patch cables, 20 RJ45 and 20 coax ID remotes, F barrel, 3 × AA batteries and a CR2032 battery

From manufacturer documentation, checked November 2, 2026. Spotted an error? Tell us.

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