Phone line testers are used in the installation and maintenance of phone lines. They are sometimes referred to as Lineman's Sets or Butt Sets. Most phone line testers are for use with analogue circuit landlines. Some may also work with digital circuits, although this is not as common.   Phone line testers resemble a traditional phone handset with an earpiece, mouthpiece, and dial keypad. They also have leads which connect to a landline circuit for testing the telephone line. These test leads commonly make connection using crocodile clips or a BT plug. Crocodile clips are used to connect to bare wires, whilst BT plugs correspond to British Telephone Sockets, a popular connector developed by British Telecoms. BT Sockets are found in many telephones and conform to BS 6312.

At RS, we offer a comprehensive selection of phone line testers designed to meet the needs of professionals in the telecommunications industry. Our range includes top-quality products from renowned brands such as Tempo, ensuring reliability and precision in every test. Whether you're troubleshooting, installing, or maintaining phone lines, our testers provide the functionality and performance you need to get the job done efficiently. RS also supplies a variety of other essential telecommunications tools and accessories, including Telephone Cables for clear and reliable connections, Telephone Sockets** and **Pliers & Cutters designed for cutting and handling cables with ease.

Why use a phone line tester?

It is important to test a landline during installation, but phone line testers are also used to locate issues in a faulty line. For example, the tester may detect digital traffic or a hazardous voltage. They can also be used for over-current protection and mains cross protection.

Where are test phones used?

• Telecommunications
• Servicing and maintenance
• Network engineering
• Research

Additional features:

Phone line tester handsets offer additional features which are worth considering when making your decision. This includes:

• ADSL compatibility
• Water resistance (IP rating)
• Digital Service Protection (DSP)
• Alarms for overvoltage
• Microphone mute
• Volume boost
• Hands-free options
• Redial
• Auto power down
• Quick-change cord
• Polarity indicator