Front:
32-35°c|90-95°F
29-32
85-90
27-29
80-85
24-27
75-80
21-24
70-75
18-21
65-70
16-18
60-65
13-16
55-60
Back:
THE NATURE COMPANY
The front of this card has been coated with 8 bands of thermal sensitive LIQUID CRYSTAL, each formulated to
display color in the 5 degree range indicated. When the band color is BROWN, the temperature is at the low end
of its range (for example, 70°-71°), GREEN is mid range (72°-73°) and BLUE is high range (740-75°). The color is
caused by aligned crystal molecules twisting around each other scattering different wavelengths of white light
back as color. Initial LIQUID CRYSTAL research was performed in 1888 by Austrian botanist Freidrich Reintzer.
Do not leave in sunlight
For best results use a felt tip pen. SKU 200121
