Frequently Asked Questions

Please see below for some of the commonly asked questions regarding HEATmarker Vaccine Vial Monitors, HEATmarker H Series Indicators, FREEZEmarker Indicators, LIMITmarker Indicators or TransTracker Temperature Indicators. If you have additional questions or need more information, contact us and we will be happy to assist.

HEATmarker Vaccine Vial Monitors (VVM)

What is a HEATmarker Vaccine Vial Monitor, or VVM?

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Does a VVM measure vaccine potency?

Frequently Asked QuestionsPlease see below for some of the commonly asked questions regarding <a href=”#cat1″ data-mce-href=”#cat1″>HEATmarker Vaccine Vial Monitors</a>, <a href=”#cat2″ data-mce-href=”#cat2″>HEATmarker H Series Indicators</a>, <a href=”#cat3″ data-mce-href=”#cat3″>FREEZEmarker Indicators</a>, <a href=”#cat4″ data-mce-href=”#cat4″>LIMITmarker Indicators</a> or <a href=”#cat5″ data-mce-href=”#cat5″>TransTracker Temperature Indicators</a>. If you have additional questions or need more information, <a href=”/contact” data-mce-href=”/contact”>contact us</a> and we will be happy to assist.

What does a VVM look like?

Frequently Asked QuestionsPlease see below for some of the commonly asked questions regarding <a href=”#cat1″ data-mce-href=”#cat1″>HEATmarker Vaccine Vial Monitors</a>, <a href=”#cat2″ data-mce-href=”#cat2″>HEATmarker H Series Indicators</a>, <a href=”#cat3″ data-mce-href=”#cat3″>FREEZEmarker Indicators</a>, <a href=”#cat4″ data-mce-href=”#cat4″>LIMITmarker Indicators</a> or <a href=”#cat5″ data-mce-href=”#cat5″>TransTracker Temperature Indicators</a>. If you have additional questions or need more information, <a href=”/contact” data-mce-href=”/contact”>contact us</a> and we will be happy to assist.

How does a VVM work?

Frequently Asked QuestionsPlease see below for some of the commonly asked questions regarding <a href=”#cat1″ data-mce-href=”#cat1″>HEATmarker Vaccine Vial Monitors</a>, <a href=”#cat2″ data-mce-href=”#cat2″>HEATmarker H Series Indicators</a>, <a href=”#cat3″ data-mce-href=”#cat3″>FREEZEmarker Indicators</a>, <a href=”#cat4″ data-mce-href=”#cat4″>LIMITmarker Indicators</a> or <a href=”#cat5″ data-mce-href=”#cat5″>TransTracker Temperature Indicators</a>. If you have additional questions or need more information, <a href=”/contact” data-mce-href=”/contact”>contact us</a> and we will be happy to assist.

What are the rules for reading a VVM?

Frequently Asked QuestionsPlease see below for some of the commonly asked questions regarding <a href=”#cat1″ data-mce-href=”#cat1″>HEATmarker Vaccine Vial Monitors</a>, <a href=”#cat2″ data-mce-href=”#cat2″>HEATmarker H Series Indicators</a>, <a href=”#cat3″ data-mce-href=”#cat3″>FREEZEmarker Indicators</a>, <a href=”#cat4″ data-mce-href=”#cat4″>LIMITmarker Indicators</a> or <a href=”#cat5″ data-mce-href=”#cat5″>TransTracker Temperature Indicators</a>. If you have additional questions or need more information, <a href=”/contact” data-mce-href=”/contact”>contact us</a> and we will be happy to assist.

What does a VVM look like as it changes color?

Frequently Asked QuestionsPlease see below for some of the commonly asked questions regarding <a href=”#cat1″ data-mce-href=”#cat1″>HEATmarker Vaccine Vial Monitors</a>, <a href=”#cat2″ data-mce-href=”#cat2″>HEATmarker H Series Indicators</a>, <a href=”#cat3″ data-mce-href=”#cat3″>FREEZEmarker Indicators</a>, <a href=”#cat4″ data-mce-href=”#cat4″>LIMITmarker Indicators</a> or <a href=”#cat5″ data-mce-href=”#cat5″>TransTracker Temperature Indicators</a>. If you have additional questions or need more information, <a href=”/contact” data-mce-href=”/contact”>contact us</a> and we will be happy to assist.

Does a VVM immediately change color when exposed to temperatures above 8°C?

Frequently Asked QuestionsPlease see below for some of the commonly asked questions regarding <a href=”#cat1″ data-mce-href=”#cat1″>HEATmarker Vaccine Vial Monitors</a>, <a href=”#cat2″ data-mce-href=”#cat2″>HEATmarker H Series Indicators</a>, <a href=”#cat3″ data-mce-href=”#cat3″>FREEZEmarker Indicators</a>, <a href=”#cat4″ data-mce-href=”#cat4″>LIMITmarker Indicators</a> or <a href=”#cat5″ data-mce-href=”#cat5″>TransTracker Temperature Indicators</a>. If you have additional questions or need more information, <a href=”/contact” data-mce-href=”/contact”>contact us</a> and we will be happy to assist.

If a vaccine is left at room temperature, how long does it take for a VVM to change from start point to end point?

Frequently Asked QuestionsPlease see below for some of the commonly asked questions regarding <a href=”#cat1″ data-mce-href=”#cat1″>HEATmarker Vaccine Vial Monitors</a>, <a href=”#cat2″ data-mce-href=”#cat2″>HEATmarker H Series Indicators</a>, <a href=”#cat3″ data-mce-href=”#cat3″>FREEZEmarker Indicators</a>, <a href=”#cat4″ data-mce-href=”#cat4″>LIMITmarker Indicators</a> or <a href=”#cat5″ data-mce-href=”#cat5″>TransTracker Temperature Indicators</a>. If you have additional questions or need more information, <a href=”/contact” data-mce-href=”/contact”>contact us</a> and we will be happy to assist.

If a vaccine is returned to a refrigerator after being outside the cold chain, will the color change reverse?

Frequently Asked QuestionsPlease see below for some of the commonly asked questions regarding <a href=”#cat1″ data-mce-href=”#cat1″>HEATmarker Vaccine Vial Monitors</a>, <a href=”#cat2″ data-mce-href=”#cat2″>HEATmarker H Series Indicators</a>, <a href=”#cat3″ data-mce-href=”#cat3″>FREEZEmarker Indicators</a>, <a href=”#cat4″ data-mce-href=”#cat4″>LIMITmarker Indicators</a> or <a href=”#cat5″ data-mce-href=”#cat5″>TransTracker Temperature Indicators</a>. If you have additional questions or need more information, <a href=”/contact” data-mce-href=”/contact”>contact us</a> and we will be happy to assist.

What testing was performed to verify the design of the VVM?

Frequently Asked QuestionsPlease see below for some of the commonly asked questions regarding <a href=”#cat1″ data-mce-href=”#cat1″>HEATmarker Vaccine Vial Monitors</a>, <a href=”#cat2″ data-mce-href=”#cat2″>HEATmarker H Series Indicators</a>, <a href=”#cat3″ data-mce-href=”#cat3″>FREEZEmarker Indicators</a>, <a href=”#cat4″ data-mce-href=”#cat4″>LIMITmarker Indicators</a> or <a href=”#cat5″ data-mce-href=”#cat5″>TransTracker Temperature Indicators</a>. If you have additional questions or need more information, <a href=”/contact” data-mce-href=”/contact”>contact us</a> and we will be happy to assist.

What quality control procedures are used to ensure that batches of VVM perform correctly?

Frequently Asked QuestionsPlease see below for some of the commonly asked questions regarding <a href=”#cat1″ data-mce-href=”#cat1″>HEATmarker Vaccine Vial Monitors</a>, <a href=”#cat2″ data-mce-href=”#cat2″>HEATmarker H Series Indicators</a>, <a href=”#cat3″ data-mce-href=”#cat3″>FREEZEmarker Indicators</a>, <a href=”#cat4″ data-mce-href=”#cat4″>LIMITmarker Indicators</a> or <a href=”#cat5″ data-mce-href=”#cat5″>TransTracker Temperature Indicators</a>. If you have additional questions or need more information, <a href=”/contact” data-mce-href=”/contact”>contact us</a> and we will be happy to assist.

What are Inspection Cards and how can I use them?

Frequently Asked QuestionsPlease see below for some of the commonly asked questions regarding <a href=”#cat1″ data-mce-href=”#cat1″>HEATmarker Vaccine Vial Monitors</a>, <a href=”#cat2″ data-mce-href=”#cat2″>HEATmarker H Series Indicators</a>, <a href=”#cat3″ data-mce-href=”#cat3″>FREEZEmarker Indicators</a>, <a href=”#cat4″ data-mce-href=”#cat4″>LIMITmarker Indicators</a> or <a href=”#cat5″ data-mce-href=”#cat5″>TransTracker Temperature Indicators</a>. If you have additional questions or need more information, <a href=”/contact” data-mce-href=”/contact”>contact us</a> and we will be happy to assist.

How are VVMs measured?

Frequently Asked QuestionsPlease see below for some of the commonly asked questions regarding <a href=”#cat1″ data-mce-href=”#cat1″>HEATmarker Vaccine Vial Monitors</a>, <a href=”#cat2″ data-mce-href=”#cat2″>HEATmarker H Series Indicators</a>, <a href=”#cat3″ data-mce-href=”#cat3″>FREEZEmarker Indicators</a>, <a href=”#cat4″ data-mce-href=”#cat4″>LIMITmarker Indicators</a> or <a href=”#cat5″ data-mce-href=”#cat5″>TransTracker Temperature Indicators</a>. If you have additional questions or need more information, <a href=”/contact” data-mce-href=”/contact”>contact us</a> and we will be happy to assist.

How are VVMs tested?

Frequently Asked QuestionsPlease see below for some of the commonly asked questions regarding <a href=”#cat1″ data-mce-href=”#cat1″>HEATmarker Vaccine Vial Monitors</a>, <a href=”#cat2″ data-mce-href=”#cat2″>HEATmarker H Series Indicators</a>, <a href=”#cat3″ data-mce-href=”#cat3″>FREEZEmarker Indicators</a>, <a href=”#cat4″ data-mce-href=”#cat4″>LIMITmarker Indicators</a> or <a href=”#cat5″ data-mce-href=”#cat5″>TransTracker Temperature Indicators</a>. If you have additional questions or need more information, <a href=”/contact” data-mce-href=”/contact”>contact us</a> and we will be happy to assist.

How should I store VVMs?

Frequently Asked QuestionsPlease see below for some of the commonly asked questions regarding <a href=”#cat1″ data-mce-href=”#cat1″>HEATmarker Vaccine Vial Monitors</a>, <a href=”#cat2″ data-mce-href=”#cat2″>HEATmarker H Series Indicators</a>, <a href=”#cat3″ data-mce-href=”#cat3″>FREEZEmarker Indicators</a>, <a href=”#cat4″ data-mce-href=”#cat4″>LIMITmarker Indicators</a> or <a href=”#cat5″ data-mce-href=”#cat5″>TransTracker Temperature Indicators</a>. If you have additional questions or need more information, <a href=”/contact” data-mce-href=”/contact”>contact us</a> and we will be happy to assist.

Why do bubbles sometimes appear on the surface of VVM dots?

Frequently Asked QuestionsPlease see below for some of the commonly asked questions regarding <a href=”#cat1″ data-mce-href=”#cat1″>HEATmarker Vaccine Vial Monitors</a>, <a href=”#cat2″ data-mce-href=”#cat2″>HEATmarker H Series Indicators</a>, <a href=”#cat3″ data-mce-href=”#cat3″>FREEZEmarker Indicators</a>, <a href=”#cat4″ data-mce-href=”#cat4″>LIMITmarker Indicators</a> or <a href=”#cat5″ data-mce-href=”#cat5″>TransTracker Temperature Indicators</a>. If you have additional questions or need more information, <a href=”/contact” data-mce-href=”/contact”>contact us</a> and we will be happy to assist.

Why do reference rings from different lots of VVMs have different optical densities?

Frequently Asked QuestionsPlease see below for some of the commonly asked questions regarding <a href=”#cat1″ data-mce-href=”#cat1″>HEATmarker Vaccine Vial Monitors</a>, <a href=”#cat2″ data-mce-href=”#cat2″>HEATmarker H Series Indicators</a>, <a href=”#cat3″ data-mce-href=”#cat3″>FREEZEmarker Indicators</a>, <a href=”#cat4″ data-mce-href=”#cat4″>LIMITmarker Indicators</a> or <a href=”#cat5″ data-mce-href=”#cat5″>TransTracker Temperature Indicators</a>. If you have additional questions or need more information, <a href=”/contact” data-mce-href=”/contact”>contact us</a> and we will be happy to assist.

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HEATmarker H Series Indicators

What is HEATmarker H Series?

Frequently Asked QuestionsPlease see below for some of the commonly asked questions regarding <a href=”#cat1″ data-mce-href=”#cat1″>HEATmarker Vaccine Vial Monitors</a>, <a href=”#cat2″ data-mce-href=”#cat2″>HEATmarker H Series Indicators</a>, <a href=”#cat3″ data-mce-href=”#cat3″>FREEZEmarker Indicators</a>, <a href=”#cat4″ data-mce-href=”#cat4″>LIMITmarker Indicators</a> or <a href=”#cat5″ data-mce-href=”#cat5″>TransTracker Temperature Indicators</a>. If you have additional questions or need more information, <a href=”/contact” data-mce-href=”/contact”>contact us</a> and we will be happy to assist.

What does a HEATmarker H-Series indicator look like?

Frequently Asked QuestionsPlease see below for some of the commonly asked questions regarding <a href=”#cat1″ data-mce-href=”#cat1″>HEATmarker Vaccine Vial Monitors</a>, <a href=”#cat2″ data-mce-href=”#cat2″>HEATmarker H Series Indicators</a>, <a href=”#cat3″ data-mce-href=”#cat3″>FREEZEmarker Indicators</a>, <a href=”#cat4″ data-mce-href=”#cat4″>LIMITmarker Indicators</a> or <a href=”#cat5″ data-mce-href=”#cat5″>TransTracker Temperature Indicators</a>. If you have additional questions or need more information, <a href=”/contact” data-mce-href=”/contact”>contact us</a> and we will be happy to assist.

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FREEZEmarker Indicators

What is FREEZEmarker?

Frequently Asked QuestionsPlease see below for some of the commonly asked questions regarding <a href=”#cat1″ data-mce-href=”#cat1″>HEATmarker Vaccine Vial Monitors</a>, <a href=”#cat2″ data-mce-href=”#cat2″>HEATmarker H Series Indicators</a>, <a href=”#cat3″ data-mce-href=”#cat3″>FREEZEmarker Indicators</a>, <a href=”#cat4″ data-mce-href=”#cat4″>LIMITmarker Indicators</a> or <a href=”#cat5″ data-mce-href=”#cat5″>TransTracker Temperature Indicators</a>. If you have additional questions or need more information, <a href=”/contact” data-mce-href=”/contact”>contact us</a> and we will be happy to assist.

What does a FREEZEmarker indicator look like?

Frequently Asked QuestionsPlease see below for some of the commonly asked questions regarding <a href=”#cat1″ data-mce-href=”#cat1″>HEATmarker Vaccine Vial Monitors</a>, <a href=”#cat2″ data-mce-href=”#cat2″>HEATmarker H Series Indicators</a>, <a href=”#cat3″ data-mce-href=”#cat3″>FREEZEmarker Indicators</a>, <a href=”#cat4″ data-mce-href=”#cat4″>LIMITmarker Indicators</a> or <a href=”#cat5″ data-mce-href=”#cat5″>TransTracker Temperature Indicators</a>. If you have additional questions or need more information, <a href=”/contact” data-mce-href=”/contact”>contact us</a> and we will be happy to assist.

How does FREEZEmarker work?

Frequently Asked QuestionsPlease see below for some of the commonly asked questions regarding <a href=”#cat1″ data-mce-href=”#cat1″>HEATmarker Vaccine Vial Monitors</a>, <a href=”#cat2″ data-mce-href=”#cat2″>HEATmarker H Series Indicators</a>, <a href=”#cat3″ data-mce-href=”#cat3″>FREEZEmarker Indicators</a>, <a href=”#cat4″ data-mce-href=”#cat4″>LIMITmarker Indicators</a> or <a href=”#cat5″ data-mce-href=”#cat5″>TransTracker Temperature Indicators</a>. If you have additional questions or need more information, <a href=”/contact” data-mce-href=”/contact”>contact us</a> and we will be happy to assist.

How long does it take a FREEZEmarker to reach endpoint under freezing conditions?

Frequently Asked QuestionsPlease see below for some of the commonly asked questions regarding <a href=”#cat1″ data-mce-href=”#cat1″>HEATmarker Vaccine Vial Monitors</a>, <a href=”#cat2″ data-mce-href=”#cat2″>HEATmarker H Series Indicators</a>, <a href=”#cat3″ data-mce-href=”#cat3″>FREEZEmarker Indicators</a>, <a href=”#cat4″ data-mce-href=”#cat4″>LIMITmarker Indicators</a> or <a href=”#cat5″ data-mce-href=”#cat5″>TransTracker Temperature Indicators</a>. If you have additional questions or need more information, <a href=”/contact” data-mce-href=”/contact”>contact us</a> and we will be happy to assist.

How should I store FREEZEmarker Indicators?

Frequently Asked QuestionsPlease see below for some of the commonly asked questions regarding <a href=”#cat1″ data-mce-href=”#cat1″>HEATmarker Vaccine Vial Monitors</a>, <a href=”#cat2″ data-mce-href=”#cat2″>HEATmarker H Series Indicators</a>, <a href=”#cat3″ data-mce-href=”#cat3″>FREEZEmarker Indicators</a>, <a href=”#cat4″ data-mce-href=”#cat4″>LIMITmarker Indicators</a> or <a href=”#cat5″ data-mce-href=”#cat5″>TransTracker Temperature Indicators</a>. If you have additional questions or need more information, <a href=”/contact” data-mce-href=”/contact”>contact us</a> and we will be happy to assist.

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LIMITmarker Indicators

What is LIMITmarker?

Frequently Asked QuestionsPlease see below for some of the commonly asked questions regarding <a href=”#cat1″ data-mce-href=”#cat1″>HEATmarker Vaccine Vial Monitors</a>, <a href=”#cat2″ data-mce-href=”#cat2″>HEATmarker H Series Indicators</a>, <a href=”#cat3″ data-mce-href=”#cat3″>FREEZEmarker Indicators</a>, <a href=”#cat4″ data-mce-href=”#cat4″>LIMITmarker Indicators</a> or <a href=”#cat5″ data-mce-href=”#cat5″>TransTracker Temperature Indicators</a>. If you have additional questions or need more information, <a href=”/contact” data-mce-href=”/contact”>contact us</a> and we will be happy to assist.

What does a LIMITmarker indicator look like?

Frequently Asked QuestionsPlease see below for some of the commonly asked questions regarding <a href=”#cat1″ data-mce-href=”#cat1″>HEATmarker Vaccine Vial Monitors</a>, <a href=”#cat2″ data-mce-href=”#cat2″>HEATmarker H Series Indicators</a>, <a href=”#cat3″ data-mce-href=”#cat3″>FREEZEmarker Indicators</a>, <a href=”#cat4″ data-mce-href=”#cat4″>LIMITmarker Indicators</a> or <a href=”#cat5″ data-mce-href=”#cat5″>TransTracker Temperature Indicators</a>. If you have additional questions or need more information, <a href=”/contact” data-mce-href=”/contact”>contact us</a> and we will be happy to assist.

Do LIMITmarkers reach endpoint immediately under extreme conditions.

Frequently Asked QuestionsPlease see below for some of the commonly asked questions regarding <a href=”#cat1″ data-mce-href=”#cat1″>HEATmarker Vaccine Vial Monitors</a>, <a href=”#cat2″ data-mce-href=”#cat2″>HEATmarker H Series Indicators</a>, <a href=”#cat3″ data-mce-href=”#cat3″>FREEZEmarker Indicators</a>, <a href=”#cat4″ data-mce-href=”#cat4″>LIMITmarker Indicators</a> or <a href=”#cat5″ data-mce-href=”#cat5″>TransTracker Temperature Indicators</a>. If you have additional questions or need more information, <a href=”/contact” data-mce-href=”/contact”>contact us</a> and we will be happy to assist.

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TransTracker Cards

What is the TransTracker shipment indicator?

Frequently Asked QuestionsPlease see below for some of the commonly asked questions regarding <a href=”#cat1″ data-mce-href=”#cat1″>HEATmarker Vaccine Vial Monitors</a>, <a href=”#cat2″ data-mce-href=”#cat2″>HEATmarker H Series Indicators</a>, <a href=”#cat3″ data-mce-href=”#cat3″>FREEZEmarker Indicators</a>, <a href=”#cat4″ data-mce-href=”#cat4″>LIMITmarker Indicators</a> or <a href=”#cat5″ data-mce-href=”#cat5″>TransTracker Temperature Indicators</a>. If you have additional questions or need more information, <a href=”/contact” data-mce-href=”/contact”>contact us</a> and we will be happy to assist.

What indicators are available on TransTracker?

Frequently Asked QuestionsPlease see below for some of the commonly asked questions regarding <a href=”#cat1″ data-mce-href=”#cat1″>HEATmarker Vaccine Vial Monitors</a>, <a href=”#cat2″ data-mce-href=”#cat2″>HEATmarker H Series Indicators</a>, <a href=”#cat3″ data-mce-href=”#cat3″>FREEZEmarker Indicators</a>, <a href=”#cat4″ data-mce-href=”#cat4″>LIMITmarker Indicators</a> or <a href=”#cat5″ data-mce-href=”#cat5″>TransTracker Temperature Indicators</a>. If you have additional questions or need more information, <a href=”/contact” data-mce-href=”/contact”>contact us</a> and we will be happy to assist.

Why didn’t the indicator on my TransTracker F card reach endpoint when I left it out at room temperature?

Frequently Asked QuestionsPlease see below for some of the commonly asked questions regarding <a href=”#cat1″ data-mce-href=”#cat1″>HEATmarker Vaccine Vial Monitors</a>, <a href=”#cat2″ data-mce-href=”#cat2″>HEATmarker H Series Indicators</a>, <a href=”#cat3″ data-mce-href=”#cat3″>FREEZEmarker Indicators</a>, <a href=”#cat4″ data-mce-href=”#cat4″>LIMITmarker Indicators</a> or <a href=”#cat5″ data-mce-href=”#cat5″>TransTracker Temperature Indicators</a>. If you have additional questions or need more information, <a href=”/contact” data-mce-href=”/contact”>contact us</a> and we will be happy to assist.

Why didn’t the indicator on my TransTracker F card reach endpoint after a torture test (i.e. putting the indicator in a fire, in a microwave, in boiling water etc…)?

Frequently Asked QuestionsPlease see below for some of the commonly asked questions regarding <a href=”#cat1″ data-mce-href=”#cat1″>HEATmarker Vaccine Vial Monitors</a>, <a href=”#cat2″ data-mce-href=”#cat2″>HEATmarker H Series Indicators</a>, <a href=”#cat3″ data-mce-href=”#cat3″>FREEZEmarker Indicators</a>, <a href=”#cat4″ data-mce-href=”#cat4″>LIMITmarker Indicators</a> or <a href=”#cat5″ data-mce-href=”#cat5″>TransTracker Temperature Indicators</a>. If you have additional questions or need more information, <a href=”/contact” data-mce-href=”/contact”>contact us</a> and we will be happy to assist.

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