The image becomes visible if you pour a drink hotter than 36 degrees Celcius (96.8 Fahrenheit). Do not microwave, should be protected from direct sunlight. It's better to wash it by hand-the sensor can be harmed in the dishwasher...Read More
Lebedev
Thermokruzhkus Mug with Temperature Sensor, Red
- Capacity: 10oz
- Do not microwave
- Dishwasher not recomended
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