Efficient, easy, and safe. Cool.

This ingenious tool uses colored light, built into a special bath plug, which makes the entire tub of water glow hot red or cool blue. Or green, when it is just perfect. Here is the technical description:

The Bath Safeguard uses a waterproof and heatproof silicon plug, a thermal sensor and LEDs to indicate the temperature of bath water without having to risk burning your hand. When placed in the water, it automatically indicates the temperature through color, red for hot water, blue for cold water and other colors, such as green, for temperatures within these extremes.

Ahhh. Just right.

While this product is especially useful, given then safety and energy saving implications of knowing your bath’s water temperature, on a broader level I am drawn to it becuase of the perfect use of ambient information. That is, the Bath Safeguard doesn’t ask the user to stick their face close to the water to read a temperature gauge. Instead, just by being near the water, you’ll be able to discern the important information that you need. Brilliant.

via Yanko