Medical Flexible PET Color Changing Thermometer Strip for Baby
Forehead 32 ～ 42 ℃
- Accuracy : ± 1 ℃
- Temperature range :32～42 ℃
- Material : PET
- Size :50*11.5 mm
- Principle : Liquid crystal heat sensitive color change
- Note : Keep it in shady and cool
- Valid date : 2 years
- Usage : Measure the temperature.
The color changing thermometers are made of cholesterol, which are
called cholesteric liquid crystals. The molecules are rod-shaped.
The labels show colors by selectively reflecting incident white
light. Conventional temperature-sensitive mixtures, in thin films,
reflect bright, almost pure colors, turning from colorless ( black,
against a black background ) to red at a formulated temperature
and, as the temperature is increased, pass through the other colors
of the visible spectrum in sequence ( orange, yellow, green, blue
and violent ) before turning colorless (black) again at a higher
temperature still. The color changes are reversible and on cooling
the color change sequence is reversed.
PLEASE NOTE: Exposing temperature labels above 250°F / 122°C for extended
periods will damage and/or destroy the liquid crystals.
The liquid crystals are usually encapsulated, packaged in
microscopic plastic spheres.
This allows the material to be cut. they are also thermally rugged
which allows them to
be laminated to protect them from hard handling in a high
BLUE bar highlighted is below the actual temperature reading.
GREEN bar highlighted is the actual temperature reading
RED/BROWN bar highlighted is above the actual temperature reading.
We guarantee the thermometer’s accuracy for 12 months from the date
Store in a cool,dry and dark location.Avoid exposure to UV
light(including direct sunlight)and extreme temperature (below-5 or
above 40 Centigrade)
1.No mercury,no glasses,non-toxic and no battery required , safe
2.Unbreakable and reusable,convenient to be used.
3.A fast and easy way to check temperature.
5.Perfect promotion gift.
7 OEM is welcomed
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