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Martindale Socket Tester 16/32A 110V ac CAT II 150 V

Martindale, Model PC105/32 Socket Tester 32A CAT III 300 V RS Calibration

Martindale, Model CP-301 Socket Tester 30mA 110V ac CAT II 150 V RS Calibration

Martindale, Model PC104/63 Socket Tester 63A CAT III 300 V

Martindale, Model PC104/16 Socket Tester 16A CAT III 300 V

Martindale, Model CP-201 Socket Tester 16A 230V ac CAT III 300 V RS Calibration

Martindale Socket Tester 16/32A 110V ac Cat II 150 V RS Calibration

Martindale, Model PC105/16 Socket Tester 16A CAT III 300 V RS Calibration

Martindale, Model PC104/16 Socket Tester 16A CAT III 300 V RS Calibration

Martindale, Model BZ701 Socket Tester 230V ac RS Calibration


Socket testers are essential tools for anyone involved in electrical installation, maintenance, or inspection. These small, handheld devices are designed to quickly and accurately confirm the functionality of AC wall sockets, ensuring safety and compliance with electrical standards. You can find out more in our comprehensive [socket testers guide](/web/content/discovery/ideas-and-advice/socket-testers-guide).

RS offers a wide range of high-quality socket testers from trusted brands including calibrated socket testers. [Martindale](https://uk.rs-online.com/web/c/test-measurement/electrical-test-measurement/socket-testers/?applied-dimensions=4294965651) is renowned for its reliable and accurate socket testers, while [RS PRO](https://uk.rs-online.com/web/c/test-measurement/electrical-test-measurement/socket-testers/?applied-dimensions=4291471876) provides robust and user-friendly options. With these top brands, you can be confident that you have the right tools for electrical safety and compliance.

To ensure the highest level of accuracy and reliability, RS offers professional [calibration services](https://uk.rs-online.com/web/content/services/maintenance-solutions/rs-calibration) for socket testers and other instruments. Regular calibration helps maintain the precision of your testing equipment, giving you confidence in your measurements and ensuring compliance with industry regulations. 

#### Socket Testers Key Features and Benefits
- **Quick Diagnostics** - simply plug the socket tester into an outlet to instantly check if the socket is working correctly. The tester will identify if the socket is producing the expected power rating, providing immediate feedback.
- **Fault Detection **- detects common wiring issues such as open ground, open neutral, and reversed polarity. This helps prevent potential hazards and ensures that electrical systems are safe to use.
- **User-Friendly Interface - **equipped with a simple interface, socket testers feature lights on the front that illuminate in different combinations to indicate the status of the socket. These visual indicators make it easy to identify and understand any faults.
- **Versatility - **suitable for both residential and commercial applications, and are invaluable for electricians, maintenance personnel, and DIY enthusiasts alike.

### Different types of socket testers:
- **Simple testers** can detect a number of different faults but they cannot indicate or measure the earth fault loop impedance. They are normally the same size as a 13A plug.
- **Advanced testers** have the same normal functions that a simple tester has including reversed line and earth, or reversed line and neutral. They display the range of numerical values that the earth fault loop impedance falls.
- **Professional testers** have the same normal functions that a simple tester has, including the numerical value of earth loop impedance reading. They also are used to measure the values of earth loop impedance to certify or report on the installation that has been carried out.
- [**230V Socket Testers**](https://uk.rs-online.com/web/c/test-measurement/electrical-test-measurement/socket-testers/?applied-dimensions=4294867911) are designed to check the wiring and functionality of standard 230V AC wall sockets, these testers quickly identify common faults such as open ground, open neutral, and reversed polarity.
- [**110V Socket Testers**](https://uk.rs-online.com/web/c/test-measurement/electrical-test-measurement/socket-testers/?applied-dimensions=4294859852) are used for testing 110V AC outlets, these testers ensure that the wiring is correct and can detect issues like missing earth connections and incorrect wiring configurations.
- [**3-Phase Socket Testers**](https://uk.rs-online.com/web/c/test-measurement/electrical-test-measurement/socket-testers/?applied-dimensions=4294760355,4294873351) are specifically designed for industrial applications, these testers check the wiring and phase sequence of 3-phase sockets, ensuring proper phase presence and sequence, as well as detecting any wiring faults


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