A SOK36AU Professional Socket, Earth Loop, Polarity & RCD Tester is an ideal accessory for any Portable Appliance Tester. It is designed to identify a variety of faults with socket wiring, but most commonly used to reveal sockets with poor earth. Simply use your PAT Tester to test one socket of an extension lead and use the SOK 36 Professional Socket, Earth Loop, Polarity & RCD Tester to test the rest! A Socket Tester really speeds up PAT Testing.

• Bright LED's out-perform fragile old style neons
• Easy to use 5 test functions
• Tough smooth contoured construction
• Logical "Green for Go" LED indication
• New circuitry means no tripping RCD's
• The first socket tester to show where the actual fault is Live , Earth or Neutral
• New patented "Fault Locate" electronics gives clearest indication yet of good plus 17 wiring fault conditions - more than any other known socket tester
• Continuous or strong warbling tone gives positive quick indication of good or faulty wiring
• Built in self check at start of testing gives confidence in correct operation at all times
• The first socket tester to also test true earth loop impedance
• Compact design encourages more frequent socket safety checks
• Audible tone indication gives clear indication of good socket or problem socket
• Test for total supply system polarity safety
• Operational check of 30mA RCDs
• Full earth loop check