We have sold out first home and are renovating our new home. Since our new home is an HDB Resale Flat, we have to lay Cat 6 LAN cables around the house. To test whether those cables were working, I decided to get a Cable Tester.

There are many brands of cable testers that are available on Lazada and Shopee. But I ended up buying the UNI-T Cable Tester (UT681C) since I have bought UNI-T products before.

I bought the UNI-T Cable Tester (UT681C) from Lazada for S$19. Local shipping within Singapore is an additional S$1.75.

UNI-T Cable Tester (UT681C) - Box Front
UNI-T Cable Tester (UT681C) – Box Front

There are two models to UT681, UT681C, and UT681L. The only difference is UT681C allows you to test for BNC cable, and it includes an RJ45 to BNC adapter in the package.

UNI-T Cable Tester (UT681C) - Box Back
UNI-T Cable Tester (UT681C) – Box Back
UNI-T Cable Tester (UT681C) - Box
UNI-T Cable Tester (UT681C) – Box

The packaging contents also include the 9V battery.

UNI-T Cable Tester (UT681C) - Box Contents
UNI-T Cable Tester (UT681C) – Box Contents
UNI-T Cable Tester (UT681C) - Instructions
UNI-T Cable Tester (UT681C) – Instructions

The RJ45 To BNC Adapter, included in the packaging, is meant to be used on the receiver unit.

UNI-T Cable Tester (UT681C) - RJ45 To BNC Adapter
UNI-T Cable Tester (UT681C) – RJ45 To BNC Adapter
UNI-T Cable Tester (UT681C) - Front
UNI-T Cable Tester (UT681C) – Front

A minor annoyance about the UT681C is I would need access to a Philip-head screwdriver to replace the batteries because a small screw secures the battery cover.

UNI-T Cable Tester (UT681C) - Back
UNI-T Cable Tester (UT681C) – Back

UT681C allows you to test RJ11 (telephone) and RG45 (LAN) cables.

UNI-T Cable Tester (UT681C) - Top
UNI-T Cable Tester (UT681C) – Top
UNI-T Cable Tester (UT681C) - Bottom
UNI-T Cable Tester (UT681C) – Bottom

The receiver unit can be detached from the transmitter unit.

UNI-T Cable Tester (UT681C) - Detached
UNI-T Cable Tester (UT681C) – Detached

If the LAN cable works correctly, the status light on the receiver and transmitter will light up simultaneously from one to eight in the same sequence.

UNI-T Cable Tester (UT681C) - Testing LAN Cable
UNI-T Cable Tester (UT681C) – Testing LAN Cable
UNI-T Cable Tester (UT681C)
UNI-T Cable Tester (UT681C)