Magiplug

This product is used to prevent your sink from overflowing and to warn you when the water gets too hot. It is a safety device used in the home.

If a sink is filling beyond a certain depth the pressure plate opens to release water down the plughole.

It also changes colour to alert the user to high water temperatures between 32 and 41 degrees.

The devices attaches to your existing plug chain as a direct plug replacement. 

These devices are widely available to purchase online.