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Yellow handheld telephone test set with angled bed-of-nails clips, backlit LCD screen and glow-in-the-dark keypad

FLUKE networks

FLUKE networks 52801RJ9 TS52 PRO tester

SKU CH-HAXS-Q3BV5 MPN 52801RJ9

Telephone test set with backlit LCD, glow-in-the-dark keypad, DSL/POTS filtering, and 20-foot drop protection

  • DetailsTest Services: Line Voltage Test Loop Current Test Display S
  • Key featuresTest Services: Line Voltage Test Loop Current Test Display S
  • Backlit LCD and glow-in-the-dark keypad for clear visibility in dark environments
  • Superior high-impedance monitoring enables safe testing on live DSL lines without service disruption
  • DropSafe design passes 20-foot drop test for rugged field reliability
  • RainSafe protection built for wet and extreme outside plant conditions
  • Two-way hands-free speakerphone allows convenient communication during line diagnostics

Telephone test set with LCD

The Fluke Networks 52801RJ9 TS52 PRO is a telephone test set built for outside-plant technicians who need reliable line diagnostics. It performs line voltage and loop current tests on POTS circuits while a DSL/POTS filter lets the user clip onto a live DSL line without disrupting the data service. A backlit LCD and glow-in-the-dark keypad keep the display readable in low light, and a two-way hands-free speakerphone supports convenient conversation during testing.

Technicians needing POTS diagnostics on live DSL

This set suits field engineers who must verify plain-old-telephone-service quality on active DSL lines without taking the broadband connection down. The high-impedance monitoring and DataSafe lockout protect the circuit while the technician works. It is not intended for installers who only test dry copper pairs, for teams that require fibre or coaxial test functions, or for users who need a power source other than the alkaline battery supplied with the unit.

20-foot drop-rated rugged case

The TS52 PRO passes a 20-foot drop test and carries RainSafe weatherproofing, so it survives harsh outdoor environments and repeated impacts. DropSafe construction and the rugged case protect the internal electronics when the tester is knocked from a ladder or exposed to rain. This durability rating is the key specification that determines whether the tool matches the physical demands of the job site.

How it compares

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

Price $314.99
Pricier than about 86% of the 160 comparable items (median $51.49).

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Specifications

Product
Brand nameFluke Networks
Model name52801RJ9
Size & build
Shipping weight1.81 kg
Package size305 × 127 × 102 mm

Questions about this item

Does the TS52 PRO come with a battery so I can use it straight away?

Yes, it ships with an alkaline battery installed, so you can start testing line voltage and loop current immediately.

Which Fluke Networks model should I choose if I need a backlit LCD and glow-in-the-dark keypad for low-light work?

The 52801RJ9 TS52 PRO includes both a backlit LCD and a phosphorescent keypad designed for dark outside-plant environments.

What does the 20-foot drop rating mean for everyday use on a job site?

The DropSafe design passes a 20-foot drop test, so the tester survives repeated impacts from ladder height or bucket-truck level.

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