Martindale CP501 Check Plug Electrical Socket Safety Check Plug in Tester

The classic check plug is a quick and easy way to ensure that 13A sockets are correctly wired, indicated by 3 bright long life LEDs.

Wiring faults are indicated by one or more of the LEDs failing to illuminate, with the pattern of lit LEDs indicating the type of fault detected. This fail-safe system means that any LED not lit indicates a fault. The robust ABS housing has a sculpted shape for easy removal and there is a look up chart on the tester for quick fault diagnosis.

The plug induces less than 5mA of earth leakage, well below RCD trip thresholds.

Detects 28 fault conditions

  • 200 - 250V (30-70Hz)
  • -10°C to 40°C, 60% RH (max)
  • Earth Leakage <5mA
  • Overvoltage CAT II, 300V
  • Flame retardant ABS


Excl. VAT £9.95
£11.94 Incl. VAT
More Information
Dimensions 65 x 65 x 47mm
Write Your Own Review
Only registered users can write reviews. Please Sign in or create an account