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Veri-Net Pro Circuit Tester

Identify unknown telephone and network connections instantly.


6 In Stock
Same Day Shipping (before 5PM ET)
Extended Double Diamond™ Warranty Available (3 Additional Year)

*Required field

Product Features

  • Just plug into any RJ-45 jack to identify the line type and network connection you have-10BASE-T, 100BASE-TX, Token Ring, analog, PBX, or ISDN.
  • Save time and make accurate readings when you're setting up a network or troubleshooting an existing one.


  • Identifies the type of circuit before connecting and possibly damaging equipment.
  • Also identifies the type of equipment attached at the far end and to warn of the presence of potentially harmful signals.
  • This tester is also great for when you're updating your cabling plant information or verifying functionality.
  • Features 6" (15.2-cm) pigtail. If you have a wall connection turned on its side or placed upside down, you can still plug in the tester and flip it over to get the reading.
  • A ferrule at the base of the pigtail protects the tester from breakage and excessive cable bends.

  • Tech Specs

    Cable Type UTP and STP
    CE Approval Yes
    Connectors (1) RJ-45 with 6: (15.2-cm) pigtail
    Network 10BASE-T, 100BASE-TX (IEEE 802.3u) (not for use with 100BASE-T4 equipment), Token Ring, analog, PBX, and ISDN
    Power (1) 9-V battery (included)
    Size 6.8"H x 1.4"W x 1.3"D (17.3 x 3.6 x 3.3 cm)
    Weight 0.3 lb. (0.1 kg)
    Product Includes:
  • (1) tester
  • (1) RJ-45 coupler
  • (1) 9-volt battery

    This product works with:
    On a 10BASE-T/100BASE-TX network with autonegotiation, the Veri-Net Pro’s 10-T and 100-T indicators will both light.

    Product works with:
  • Veri-Net Pro Accessory Pack (TS049)
  • Network Tone Generator (TS151)
  • Tone Probe (TS155-R3)

    * Technical specification weight is the unit weight. It is not the packaged shipping weight. For shipping weight, please contact Black Box customer service at 877-877-2269.

  • Support


    Double Diamond Warranty

    Extended 1 Year Warranty Available

    Protect your purchase with an additional 1 Year Double Diamond™ warranty!
    Cost: $27.09

    Extended 3 Year Warranty Available

    Protect your purchase with an additional 3 Year Double Diamond™ warranty!
    Cost: $54.18


    Double Diamond™ Warranty (Standard)

    Take the risk out of equipment purchases with the Double Diamond™ Warranty from Black Box Network Services.

    The Double Diamond Warranty is our warranty that protects your Black Box® brand products* from accidental damage, including drops, water, and power surges.

    The Veri-Net Pro Circuit Tester comes with a standard 1 Year Double Diamond™ Warranty (Standard) already included.

    During the warranty period, Black Box Network Services will repair or replace your damaged equipment within one week of receipt at NO CHARGE!*

    Plus, get an Extended Double Diamond Warranty.

    You can also extend your warranty or protect a previously purchased Black Box® brand product** for an additional year—for only 10% of the purchase price! Or, extend your coverage for a full three years for only 20% of the purchase price!

    Ordering an extended warranty is easy: When viewing a product in your shopping cart, just select the one or three years of additional coverage in the dropdown menu under “Warranty Options.” For details, contact Customer Service at 724-746-5500.

    * Warranty subject to certain exclusions and limitations ** Certain products may not be eligible.

    What’s more, we also have a 45-day return policy. Simply call Customer Service for a Return Authorization (RA) number, return your product in new condition and in the original package, and receive a full refund.