Tripp Lite
1111 W. 35th Street
Chicago, IL 60609
1 773.869.1774
1 773.869.1329

RJ11/RJ12/RJ45 Wire Crimper with Built-in Cable Tester

Model Number: T100-001-TST

Cut and strip LAN cables, crimp them onto a 4- (RJ11), 6- (RJ12) or 8-position (RJ45) plug and find wiring faults with the tester.
  • Saves time and makes installing LAN cables easy
  • Multipurpose tool efficiently cuts and strips LAN cables up to 12 mm in diameter
  • Wire crimper is compatible with all RJ45, RJ12 and RJ11 modular plug types
  • Built-in cable tester identifies wiring faults
  • Ergonomically designed with non-slip handles for secure hand grip
  • 1-year limited warranty


Cleanly Cut and Strip Both Flat Modular and Round Network Cables
This RJ11/RJ12/RJ45 crimper is perfect for cable installers who want to save time when tackling large-scale projects. It allows you to cut and strip LAN cables up to 12 mm in diameter easily and efficiently. Its embedded blades strip flat modular and round network cables such as Cat5/5e and Cat6.
Terminate 4-Wire RJ11, 6-Wire RJ12 and 8-Wire RJ45 Modular Plugs
Terminating 4-wire RJ11 (4P4C), 6-wire RJ12 (6P6C) and 8-wire RJ45 (8P8C) modular plugs is easy. Insert your wired plug into the appropriate slot and squeeze the handles to crimp. The handles have non-slip grips and are ergonomically designed for comfort.
Immediately Test or Debug Newly Crimped or Existing In-Wall Network or Telecom Cables
This multifunctional tool comes with a built-in UTP/STP tester to help you quickly and accurately identify wiring faults in newly crimped or existing in-wall LAN cables up to 600 feet (183 meters). LEDs indicate if your LAN cable has a Short, a Miswire, a Reversal Wiring or Split Pairs so you can pinpoint the specific wiring problem as well as its location. The tester also includes a Debug mode that allows you to identify which cable pairs have a wiring fault. Best of all, this multipurpose tool comes with a remote unit that detaches from the handle so you can check installed cables almost anywhere.
Perfect for Creating Custom-Designed Cables
The RJ11/RJ12/RJ45 Wire Crimper with Tester lets you decide how long your network cables should be and what plug they should use. Rather than wait for a custom order, you can create your own network cables and test them right away.
One-Year Warranty
The T100-001-TST is backed by a one-year limited warranty, ensuring reliability and performance.

Typical Applications

  • Ideal for cable installers; saves time and makes installation easier
  • Cut and strip LAN cables up to 12 mm in diameter
  • Crimp cable for all RJ11 (4P4C), RJ12 (6P6C) and RJ45 (8P8C) plug types
  • Locate and identify wiring faults in in-wall LAN cables

Package Includes

  • T100-001-TST RJ11/RJ12/RJ45 Wire Crimper with Tester
  • Owner’s manual

System Requirements

  • Four LR44 batteries required (not included)
RoHS compliant


UPC Code037332210463
LED IndicatorsRed (Fault), Green (Pair)
ColorBlack; Yellow
Shipping Dimensions (hwd / in.)1.38 x 3.35 x 9.06
Shipping Weight (lbs.)1.43
Operating Temperature Range0 to 104 F (0 to 40 C)
Storage Temperature Range14 to 131 F (-10 to 55 C)
Relative Humidity5% to 90% RH, Non-Condensing
Side A - Connector 1RJ45 (FEMALE)
Side B - Connector 1RJ45 (FEMALE)
TechnologyCat5/5e; Cat6; Cat6a
Product Warranty Period (Worldwide)1-year limited warranty


Network Cables & Adapters
  Model Number Description
N020-01K-BL | Network Cables & Adapters N020-01K-BL Cat5e 350MHz Bulk Stranded-Core PVC Cable - Blue, 1000-ft., TAA
N020-01K-GY | Network Cables & Adapters N020-01K-GY Cat5e 350MHz Bulk Stranded-Core PVC Cable - Gray, 1000-ft., TAA
N022-01K-GY | Network Cables & Adapters N022-01K-GY Cat5e 350MHz Bulk Solid-Core PVC Cable - Gray, 1000-ft., TAA
N028-01K-GY | Network Cables & Adapters N028-01K-GY Cat5e 350MHz Bulk Solid-Core PVC Outdoor-Rated Cable - Gray, 1000-ft.
N222-01K-BL | Network Cables & Adapters N222-01K-BL Cat6 Gigabit Bulk Solid PVC Cable - Blue, 1000-ft.
N222-01K-GY | Network Cables & Adapters N222-01K-GY Cat6 Gigabit Bulk Solid PVC Cable - Gray, 1000-ft.
N224-01K-GY | Network Cables & Adapters N224-01K-GY Cat6 Gigabit Bulk Solid Plenum-Rated CMP Cable - Gray, 1000-ft., TAA
Network Panels, Jacks & Hardware
  Model Number Description
N030-010 | Network Panels, Jacks & Hardware N030-010 RJ45 Plugs for Solid / Stranded Conductor 4-pair Cat5e Cable, 10-Pack
N030-100 | Network Panels, Jacks & Hardware N030-100 RJ45 Plugs for Round Solid / Stranded Conductor 4-pair Cat5e Cable, 100-Pack
N030-100-FL | Network Panels, Jacks & Hardware N030-100-FL RJ45 Plugs for Flat Solid / Stranded Conductor Cable, 100-Pack
N031-050 | Network Panels, Jacks & Hardware N031-050 Cat5e RJ45 Modular In-Line Connectors for Stranded Cat5e Cable, 50-Pack, TAA
N230-100 | Network Panels, Jacks & Hardware N230-100 Cat6 RJ45 Modular Connector Plug with Load Bar, Solid/Stranded Conductor Round Cat6 Wire, 100-pack

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We're always available to help with questions, including product selection, sizing, installation and product customization. Call us at 1 773.869.1774 or email