It is a European model with no Amazon.com offer on October 26, 2026. It is sold on the European Amazon stores, often with a European plug or power adapter, and a US buyer would be relying on an importer.
Models on this shelf that Amazon.com did sell on that date:
A network cable tester for RJ45, RJ12 and RJ11, named for ISDN, LAN, network and patch leads; a test of the correct pin occupancy with a master unit and a remote unit; a separate light for pins 1 to 8 and one for ground; shielding, with every individual conductor scanned automatically; a scan speed settable low or high; and a contents list giving the LAN tester with a plastic case, with a 9 V block cell that is not supplied.
A light for the ground wire
Pins 1 to 8, and ground. Nine indicators. On a shielded lead the screen is a ninth path and it fails silently: everything else passes, the lead works, and the shielding does nothing. Two other testers on this shelf mention the shield, and this one gives it an indicator alongside the pins.
Scan speed, high or low
Set by the user, which is unusual at this level and is the same idea another unit here publishes in different words. High to sort a pile, low to look properly at the one that failed.
Nine volts, not supplied
The block cell is the least convenient of the three power arrangements in this group. It lasts a long time in a tester and it is the one nobody has spare. The bullet is honest that it is not in the box, which is the right time to find out.
Before ordering
Put a nine-volt cell in the same basket. Everything else needed is in the case.
Where it holds up, and where it stops
Strengths
Ground gets an indicator of its own, so a shielded lead whose drain is not connected shows as a fault rather than passing
The shielding of each conductor is described as scanned automatically, which is one step past checking eight conductors and nothing else
A plastic case is in the box, which is what keeps a two-piece tester as a pair rather than as two things in different drawers
Compromises
A 9 V block cell, which is the one cell least likely to be in a drawer, and it is not supplied
Nothing about split pairs, on a page that otherwise describes its indicators conductor by conductor
No tone and probe, so the unit checks what it is plugged into and cannot find it among others
Specifications
Tester type
A continuity tester in two pieces — the second bullet names a master unit and a remote unit and describes the test as checking the pin occupancy of the lead. No screen and no distance measurement appears anywhere on the page
Connector types accepted
RJ45, RJ12 and RJ11 — stated in the title and in the first bullet, with ISDN, LAN, network and patch leads named in the title as what the unit is for
Wire map detection
Yes — the third bullet gives a separate light for pins 1 to 8 and one for ground, which is nine indicators rather than the eight the rest of this group offers
Split pair detection
Not published on the listing — the test is described as pin occupancy, which is the order conductors arrive in, and a pair that is continuous but wrongly twisted is not addressed anywhere
Length reporting
Not published on the listing — no distance, no screen and no measurement appears in the title or in any of the six bullets
Tone and probe function
Not published on the listing — no tone generator and no probe is named, and the contents list holds the tester and a plastic case and nothing else
Remote units supplied
One — stated in the second bullet as the remote half of a master and remote arrangement
PoE detection
Not published on the listing — power over the network cable is not named in either direction anywhere on the page
Power source
One 9 V block cell, not supplied — stated in the sixth bullet, which also gives the contents of the box as the tester and a plastic case
Amazon reference
B07NRKRX3X
EAN
4251073676579
On Amazon.com
It is a European model with no Amazon.com offer on October 26, 2026.
The questions that come up before an order
Why does a ground indicator matter on a shielded lead?
Because a shielded lead whose screen is not bonded at both ends behaves like an unshielded one, and every other test on it passes. Eight lights for eight conductors say nothing about the ninth path. This unit gives it a light of its own, which turns an invisible fault into a visible one.
What does setting the scan speed change?
The pace at which the tester steps through the conductors. A high setting sorts leads quickly. A low setting holds each conductor long enough to see a contact that is marginal rather than absent. It is the same idea a second unit on this shelf publishes, and it is the kind of feature that only shows its worth on a fault.
Our score
7.8/ 10
The most thorough of the simple testers here, because it counts nine paths rather than eight and scans the shield. The nine-volt block it needs, and does not include, is the thing to remember at the checkout.
The buyer this one serves, among network and storage gear
Shielded leads and shielded sockets, where whether the screen is actually connected is as much a question as whether the eight conductors are.
What this one costs among network and storage gear
A reference exists on these Amazon stores: France, Germany, Italy, Spain, United Kingdom. Listed is not the same as in stock — availability changes daily.
Details checked on September 10, 2026.
Sources
Specifications: the manufacturer sheet for network and storage gear and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
continuity tester · RJ11, RJ12 and RJ45 · ISDN and Cat 6 to Cat 8 named · four named faults · lights for eight conductors on the remote · no power source stated
A continuity tester that names the four faults it looks for one by one, and never says what it runs on.
Best for: A house with both telephone and network wiring in the walls, where a single tester should cover the older sockets as well as RJ45.
continuity tester · RJ45 and RJ11 · Cat 5 to Cat 7 · scan mode or step mode, contact by contact · detachable remote · telephone line DC and ring detection · 9 V cell not supplied
The only tester on this shelf with a step mode that checks one contact at a time, and the only one that detects a telephone ring signal and tells anode from cathode.
Best for: A ten-dollar instrument for a house with both network and telephone wiring, where pinning a fault to one contact is worth the slower mode.
continuity tester · RJ45, RJ11, USB A and B, six-pin FireWire and coaxial · lights for eight conductors and the shield · three faults named · case and coaxial adapter supplied · no remote listed
A tester that reaches beyond network leads to USB, FireWire and coaxial, and whose contents list holds a case and an adapter and no remote unit.
Best for: A bench or a workshop drawer of assorted leads, where the network cables are only part of what needs checking and everything is within reach.
