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Our diagnostic plug will need the supply socket to be correctly earthed in order to work as designed.

It will not show you if the blue neutral wire is missing / disconnected from the supply socket, or when your tea is on the table!


  • HAPPY-PLUG is NOT waterproof.

  • Store in a dry environment. 

  • Do not use with wet hands or if the plug is wet. as this may cause an electric shock.  

  • Do not immerse in water. 

  • HAPPY-PLUG will not work as designed if the socket is not properly earthed.

  • The plug has been factory sealed.  No user serviceable parts inside the plug.

  • Do not tamper with the pontoon or campsite power supply for your own safety. Seek professional help.

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