DigiTemp Product Overview

These self-adhesive labels consist of a series of temperature sensitive elements containing microencapsulated Thermochromic Liquid Crystal, TLC, coated on a black backing. Each element changes color distinctly as its rated temperature is reached.

Thermochromic Liquid Crystals have been used in several common applications including:

• Forehead Thermometers
• Fridge Thermometers
• Nursery Thermometers
• Aquarium Thermometers
• Gas Level Indicators
• Overheat Indicators

The technology is like that used in TV and Watch Displays. However, instead of reacting to electrical impulses, they respond to fluctuations in temperature. They can be formulated to react to temperatures between -30°C (-22°F) and 120°C (248°F) and react to changes in temperature as small as 0.1°C (0.2°F). Accurate to up to +/- 1°C if stored and used correctly, they will remain functional for many years.

Specifications

Related Documents

Digi-Temp Thermometers Overview

Digi-Temp EZ Liquid Crystal Overview

Digi-Temp Liquid Crysal Temperature Indicating Strip

Digi-Temp Technical Data Sheet

Additional Information

Digi-Temp® 

Digi-Temp color changes are reversible, passing through the colors of the spectrum in sequence (orange, yellow, green, and blue) before turning black at a higher temperature. The TLC strips are calibrated so that the indicator showing green indicates the actual temperature. The color changes are reversible, and the reflected colors will be observed in the reverse order upon cooling.

Digi-Temp EZ

Digi-Temp EZ is a single color change that is reversible, attaining and maintaining the reflected color and turns black as the temperature is reversed. Thermochromic single color change labels can be ascending or descending, changing from black to a color, as temperature increases or decreases.

Walk-in Fridge Thermometer

Used to monitor and ensure ambient temperature remains at designated temperature, 4°C. If the ambient temperature rises above or falls below this temperature, a colored arrow appears.

These Easy Read thermometers are custom made to any size and with any temperatures between 0°C and 100°C.

Temprite Thermometer

Used to monitor and ensure ambient temperature remains within a designated temperature limited range between 2°C and 8°C. Ideal for checking real-time transit temperature of products such as raw fish, foods, chocolate, fresh flowers, vaccines, blood, and more.

The temperature is indicated by the colored display:

• The red triangle appears if the temperature rises above an upper temperature limit, 8°C.
• The blue triangle appears if the temperature falls below a lower temperature limit, 2°C.
• When both symbols are visible this indicates the temperature is correctly within the desired 2°C to 8°C range.

How They Work:

The temperature-sensitive elements contain TLC molecules that are very sensitive to temperature and change their arrangement in response to changes in temperature. This change in molecular geometry affects the way in which the TLC interacts with light, resulting in a change in the color of each temperature event. When the rated temperature of an indicator is reached, the TLC changes its form from reflecting (color) to non-reflecting (black) or vice versa. This causes the color-change at the temperature event to occur.