Up for sale is the Socket & See SS130 Socket Tester, a reliable and efficient tool for testing mains socket connections. This unit, made in the United Kingdom, is a must-have for any professional or DIY electrician. It is specifically designed to test R1 and R2 values without the need for an additional earth spike. This Socket Tester is in excellent working condition, allowing you to quickly and easily identify faulty connections. Its compact and lightweight design, coupled with its easy-to-read LED display, makes it a convenient and user-friendly device. Don't miss out on the opportunity to add this essential tool to your collection.