Details
The leaf thermometer is a thermometer that represents temperature with color.
When the temperature is between 20C to 25C, the thermometer will be a beautiful green color.
But if the temperature is too cold, it will change to a charred brown color that's almost black.
And if it's too hot, it will gradually change to yellow. Try sticking is on your door or wall.
(there is a reusable adhesive seal the back of each leaf).