Frequently Asked Questions 


Can I reuse a color-changing temperature indicator?

Our standard high temperature ascending labels and freeze technology have an irreversible color change, meaning that once they change in color, they don’t change back. This gives you a permanent record of temperature breach. We do offer freeze technology that can be reset, along with liquid crystal solutions that are continually indicating temperature.

How does ATI verify the performance of its color-changing indicators?

The performance of the color changing indicators is verified by subjecting the products to NIST calibrated heating and/or cooling apparatuses that step the production units through ramped temperature changes that are in fractions of a degree.  The tested production units are closely monitored by qualified lab technicians during the heating and/or cooling phase to ensure that the indicators trigger within the specified accuracy tolerance. ATI is proud to be ISO 9001:2015 certified. This means that our Quality management system is certified to an international standard to help ensure the integrity and quality of our products. ATI operates as an FDA registered facility.

How do the color-changing indicators activate/change color?

Liquid crystal thermometers are made using cholesteric liquid crystals that have the unique ability to reflect a single color of light at specific temperatures.  The liquid crystals are carefully formulated to change color at the correct temperature.

High temperature irreversible indicators utilize safe, high purity chemical compounds that have accurate melt points.  The compounds are combined with a red dye and applied to a porous substrate. When exposed to temperature above their response temperature, the compound melts, migrates to the front of the label, revealing a red color.

FCP products contain a technology which changes from solution to rigid gel within a 1°C range.  Density differences of the gel are used to create a change from green to red when the FCP is chilled below its response temperature.

BlindSpotz is a thermochromic ink that will permanently change from transparent to colored when chilled below its response temperature.

ViziRev is a resettable ascending indicator containing a microencapsulated phase change material that appears transparent at room temperature and turns white when chilled.  The indicator must be chilled about 8-10 degrees below its response temperature to turn white. When the indictor is warmed it will change from white (typically in the image of a snowflake) to transparent at its indicated response temperature.

How accurate are color-changing indicators?

Our color changing indicators vary in temperature accuracy range. Our high temperature ascending labels tracking 25°C (77°F) to 71°C (160°F) have an accuracy of ±1°C.  From 80°C (176°F) to 215°C (420°F) the indicator accuracies start at ±2°C and increase to ±3°C on the high end of the response temperature range. Our FCP products (tracking 15°C to -2°C) have a ±2°C accuracy rating, but ±1°C is also available. Our Blindspotz technology (tracking -4°C to 4°C) has a color change within 2°C. Our ViziRev technology has a ±1°C accuracy rating. With the ability for custom products, we can work through our R&D process to dial these ranges in for critical applications.



Can Endicate track when an excursion occurs?

Endicate has the ability to give a 6-digit sequence of numbers if an alarm has been triggered. These 6 digits can be entered into an ATI web to display the exact time and date of alarm excursion.

Can I reuse an Endicate device?

Our current Endicate offering is a single-use device.

What are the different alarm types?

Endicate offers an instant, cumulative and continuous alarm option. Selecting an instant trigger type shows the first point at which a temperature breach has occurred. A cumulative trigger type adds the number of minutes a temperature breach has occurred until your time has been reached.

A continuous trigger shows when a temperature breach has occurred for a constant amount of time. ATI has put together an in-depth document to explain these alarm settings. Contact us today to learn more!

What is the life expectancy of Endicate?

Endicate offers a 1-year minimum run-life when temperature is maintained between -20°C and 70°C. Endicate has a 3 year shelf life – extreme temperatures can affect this run life.

How accurate is an Endicate device?

The Endicate device is extremely accurate with ±0.5°C across the entire temperature range.

Can I customize the label on an Endicate device?

ATI offers customization throughout their product line. The Endicate label can include your brand standards and be completely personalized for your needs. Minimums may apply.

Data Loggers

What is the difference between NFC, USB and Bluetooth?

  • NFC - Near-field communication (NFC) is a set of communication protocols that enable two electronic devices, one of which is usually a portable device such as a smartphone, to establish communication by bringing them within 4 cm (1.6 in) of each other. LOG-IC 360 NFC data loggers provide full time and temperature history by using an NFC reader or smartdevice with NFC capability.
  • USB – An industry standard that establishes specifications for cables, connectors and protocols for connection, communication and power supply between personal computers and their peripheral devices. LOG-IC 360 USB data loggers allow you to pull full time and temperature history by plugging it into a USB port to extract the data.
  • Bluetooth - Bluetooth is a wireless technology standard for exchanging data over short distances from fixed and mobile devices. LOG-IC 360 BT data logger allows you to pull time and temperature data within XXX feet of the device with the LOG-IC 360 BT app.

How do I access my temperature data?

All temperature data can be securely stored in the ATI DataNow cloud. This removes the need for manually tracking temperature and keeping paper logs for audit requests. It also gives you the ability to view temperature history anytime, anywhere.

How does my temperature data get uploaded to the cloud?

The full line of LOG-IC 360 data loggers allow you to hold important temperature records in a cloud database. You can push data to the cloud using our LOG-IC 360 Apps or by going to and selecting ATI DataNow. While in the portal, you will be able to sort, analyze and download your data in a number of different formats.

Can I reuse a LOG-IC 360 data logger?

LOG-IC 360 NFC and USB data loggers are available in single use, 26 count and 255 use. The use count refers to the number of on/off cycles. The LOG-IC Bluetooth device can be used as many times as you need until battery depletion. Because these are electronic devices, they are all powered by battery so there are shelf life storage requirements along with battery life that can affect the use counts.

Can I put the LOG-IC 360 data logger device directly into the dry ice environment?

No, only the probe is designed for this environment. The actual monitor will not provide acceptable performance if the battery and/or other components are exposed to temperatures below –20°C.

What is the life expectancy of a LOG-IC 360 data logger?

LOG-IC 360 NFC and USB data loggers have a shelf life of up to 2 years and a use life up to 18 months. The LOG-IC 360 BT logger has a minimum shelf life of 1 year and a use life of 1 year. Extreme temperatures (both high and low) can affect both shelf and use life.

Are LOG-IC 360 data loggers configurable?

Yes, you can personally program your LOG-IC 360 data loggers through our LOG-IC Management Software or the LOG-IC apps. We are also happy to program the loggers with your specifications.

How accurate is a LOG-IC 360 data logger?

All variations of the LOG-IC 360 data loggers are extremely accurate. Both NFC and USB have an accuracy of ±0.5°C. We offer the same accuracy for Bluetooth but also offer a premium option with ±0.25°C accuracy reading.

How do you dispose of LOG-IC 360 data loggers?

We advise that you dispose of all LOG-IC 360 data loggers via electronic waste. Additional information about this can be found on your County or State website.