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UNI-T UT681L Cable Tracker RJ45 RJ11 Line Tester Home Cable Tester

UNI-T•Network/Communication Instruments and Meters

UNI-T UT681L Cable Tracker RJ45 RJ11 Line Tester Home Cable Tester

CN¥60.68

SKU: 100003733296

Status:In Stock (5)

ID: 5357780

Weight: 200.00 g

Dims:160x102x40 mm

Specifications

Category: Cable Tester

Variants / Sale Attributes

Model: UT681L Cable Tester

Package Contents

1 x host, 1 x warranty card, 1 x manual, 1 x battery

Product Description

Product Specifications

Overview

Brand: UNI-T
Model: UT681L-CHN
Product Type: Cable Tester (RJ45/RJ11)
Certification: CE (EN61326-1:2013; EN61326-2-2:2013), EMC certified
Power Supply: 9V stacked battery
Operating Temperature: 0°C to 40°C
Storage Temperature: -10°C to 50°C

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Storage Humidity

10% to 90% RH

Altitude

≤ 2000 meters

Cable Types Supported

RJ45, RJ11, RJ12

Test Modes

Item	Detail
Quick Test Mode	9 LEDs (LED1-LED8, LED_G), fast flashing indicator
Slow Test Mode	9 LEDs (LED1-LED8, LED_G), slow flashing indicator

Cable Testing Functions

Detects normal wiring sequence for RJ45 cables; LEDs 1 to 8 and G light sequentially on transmitter and receiver
Supports testing of shielded twisted pair (STP) cables with G indicator
Identifies open circuits: corresponding LEDs on transmitter and receiver do not light
Detects multiple line failures: multiple LEDs off
Detects wiring disorder: transmitter shows normal sequence; receiver shows disorder (e.g., 3/4 wires swapped)
Detects short circuits: transmitter LEDs corresponding to shorted lines glow brighter; receiver LEDs do not light

RJ11/RJ12 Testing

For RJ11 cables, LEDs 2 to 5 light sequentially and loop
For RJ12 cables, LEDs 1 to 6 light sequentially and loop
Detects short circuits, disorder, and open circuits similar to RJ45 testing

Manual Power On/Off

Short press power button (0.5s) to power on and switch test modes
Long press power button to power off

Automatic Power Off

Powers off automatically after approximately 10 minutes of inactivity

Low Voltage Detection

Alerts when battery voltage drops below approximately 7.2V

Transmitter unit with RJ45 and RJ11 ports

Receiver unit with RJ45 and RJ11 ports

Supports testing of cable continuity, short circuit, open circuit, and crossed wires

LED indicators provide clear visual feedback for cable status

Compact and portable design suitable for field and laboratory use

Passed electromagnetic compatibility (EMC) tests including radiation disturbance (RE), radiation immunity (RS), and electrostatic discharge (ESD) tests

UT681C-CHN (supports RJ45/RJ11/BNC with RJ45 to BNC adapter)

UT681HDMI-CHN (supports HDMI/MINI-HDMI cables)

Additional details

CE certified according to EN61326-1: 2013 and EN61326-2-2:2013 standards

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