Home of measuring instruments


Cable Tester

TM903 Resize


Features :-

- Tests voice (6-wire), data (8-wire / 9-wire) and video (coaxial) cabling  systems
Detects opens shorts miswires and splits pairs one twisted pair cabling
Displays graph wiremap opens shorts miswires split pairs and the remote ID number all on one screen
Measures length
Using multiple remote remote ID up to 8 locators
Low battery detector
Signal tone generator mode for use with tone tracers
Auto power off

Specifications :-

Cable types tested


Cable category tested

CAT5, CAT6, RJ-11


58 x 45 mm (L x W) monochrome LCD with backlight

Wiremap test

detects opens, shorts, miswires, split pairs


1.5V x 6 pcs

Battery life

Approx. continuous testing 200 times

Shutoff rate power

1 µA

Operate maximum power

20 mA


156 x 73 x 33 mm (L x W x H)


170 g

Test connector

test voice cable (RJ11)

video coax cable (F-connector)   

Length test

range : up to 255 m (865 ft)

resolution : 0.1 m (ft)

unit : meter & foot

typical accuracy : ±10% + 1.0 m (3 ft)

Operating temperature and humidity

5 to 40°C, below 80% RH

Storage temperature and humidity

-10 to 60°, below 70% RH

Note :
1) Country of origin : Taiwan
2) Warranty : 1 year against manufacturing defects

3) All the above descriptions are subject to change without notice
4) Price for cable tester TM903 Click-here

For enquiries, kindly email us at Click-here