You can use a cup like this when you need to check the temperature of your coffee, tea or some water you need to use. By holding the cup with both hands, you enable the static sensor with conductive film which turns the LED on. The tiny heart on the cup will show either red, orange or blue light to indicate that the liquid’s temperature is over 65 °C, 35-65 °C or below 35 °C.
The cup powers from 2 AA batteries and features polypropylene on the outside, stainless steel on the inside, silicone o-ring sealing, heart-shaped LED indicator, static sensor with conductive film, and a thermo-sensor at the base.
You can get it from Brando for $38. The cup measures 70 x 70 x 210mm at 319g and has a capacity of 380ml.