What are ready-to-use indicators?

Ready-to-use indicators are small cards which contain temperature-sensitive areas which provide a visual signal triggered by environmental conditions. For example, a mark may change color if the temperature exceeds a certain threshold, or a different mark may appear if freezing conditions have been encountered. Indicator cards are available in various configurations, each intended to provide useful information in certain shipment workflows.

Ready to use indicators are one of several varieties of environmental sensors available from CSSI which prevent the consumption of unsafe foods or medicine. End-users benefit from improved confidence in the quality of the items received, and thereby improve their opinion of your brand.

What types of ready-to-use indicators are available?

Indicators are available in a variety of configurations, each intended to report on specific environmental situations:

1. Heat indicators
2. Freeze indicators
3. Shipment temperature indicators
4. Food temperature indicators
5. Blood temperature indicators

This indicator cards require no batteries or power. They work through the application of certain chemicals or inks which are affected by temperature. CSSI is able to help you find or specify the right type of indicator for your application.

What are great applications for ready-to-use indicators?

Ready-to-use indicators are ideal for situations where you need to provide assurance that acceptable temperature ranges are maintained for items during shipping or handling, particularly if there is a high volume of such items which make the cost per unit important. These indicator cards are disposable and inexpensive, so they are suited for one-way trips and customer shipments. Indicators are great for all situations where you need to ensure that food or medicine is properly handled after it leaves your direct control.

Some typical applications might include:

• Shipment of frozen food
• Shipment of temperature-sensitive food or medicine
• Handling of blood samples for which proper temperatures must be maintained

Contact CSSI to discuss ready-to-use indicators

Complete the form to connect with CSSI for a conversation on ready-to-use indicators. We are able to provide you with samples for testing, and ensure that you specify the right type of card for your application.

FAQ – Frequently Asked Questions About the Zebra Ready-To-Use Indicators

Q: What are Zebra Ready-To-Use Environmental Indicators, and what problem do they solve?

A. They are simple card or self-adhesive temperature indicators that give you visibility into the temperature exposure of products such as medications and vaccines. They reveal when products have been exposed to excessive heat or freeze events, so your team can spot a temperature excursion at a glance instead of assuming a shipment stayed in range. The indicators are manufactured by Zebra/Temptime and support a variety of stability profiles.

Q: How do the indicators show that a product was exposed to excessive heat?

A. Time-temperature indicators (TTIs) and threshold heat indicators give an irreversible visual indication when temperature-sensitive products are exposed to excessive heat. Because the change cannot be reversed, an excursion that happened earlier in transit or storage is still visible when the product reaches your dock, even if the temperature has since returned to normal. That visual feedback supports decisions about product integrity throughout the product’s lifecycle.

Q: Can the indicators detect freeze events as well as heat?

A. Yes. FREEZEmarker freeze indicators provide an easy-to-read visual indication when temperature-sensitive products are exposed to freeze events. This matters for products that are damaged by freezing, where a cold excursion can be as costly as a warm one and is otherwise hard to detect after the product thaws.

Q: Which indicator fits my product type or application?

A. Zebra groups the indicators by use:

• Heat exposure: TTIs and threshold heat indicators for products sensitive to excessive heat.
• Freeze exposure: FREEZEmarker indicators for freeze-sensitive products.
• Food: Fresh-Check indicators are temperature-sensitive labels that give a visual indication when food is subjected to temperatures that can affect freshness.
• Blood products: Safe-T-Vue indicators show when blood products, plasma, and RBCs have reached or exceeded 6°C or 10°C.
• Shipments: TransTracker and Electronic Temperature Sensors monitor temperature-sensitive products across the cold chain, from manufacturer to distributor and on to the hospital, clinic, pharmacy, or end user.

Q: What operational and financial benefits can we expect?

A. Zebra positions the indicators as a way to improve process efficiency and protect margins from re-shipments of product inadvertently exposed to damaging conditions. In practice, receiving and quality staff get a clear visual basis for accept, hold, or reject decisions without specialized equipment. Zebra also describes the food indicators as a cost-effective monitoring option, which makes item-level or case-level monitoring practical where electronic sensors on every unit would not be.

Q: How Can I Obtain Samples of Zebra Ready-To-Use Indicators?

A. CSSI is an authorized Zebra reseller. Contact CSSI to discuss your need, and we will work with you to arrange samples for testing and evaluation.