RLC Series labels are ideal for monitoring temperatures of electronic parts, transformers, relays and motors. Pricing for several popular models is shown in the ordering table below. Use the Part Number Builder to obtain pricing for other models. Reviews Rated 5 out of 5 by bosco from Perfect temperature range for my applications.
The Thermochromic Liquid Crystal TLC range of reversible temperature indicating labels forms a fast, easy to interpret indication of actual temperature. They are also convenient, easy to use and in-expensive. These self adhesive labels consist of a series of temperature-sensitive elements containing microencapsulated TLC coated on a black backing. Each element changes colour distinctly as its rated temperature is reached, passing through the colours of the spectrum in sequence Orange, Yellow, Green, and Blue before turning black at a higher temperature.
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Thermochromic Liquid Crystals LCs can be highly temperature sensitive, change to many colors, and are more expensive than leuco dyes. LCs start black below their temperature range, go through the colors of a rainbow, and back to black again above the temperature range. LCs are reversible in that they can be used over and over again. The picture shows an example of a liquid crystal sheet in response to warming.