*****The Cryoguard™ Activation Tool is recommended for proper activation of the Cryoguard™ M-25 Thermal Exposure Indicator. *****

M-25 Cryoguard Thermal Exposure Indicator

• Signal temperature: -25°C
• Activated indicator turns red when exposed to temperatures at or above -25°C
• Used for monitoring products that need to be kept at or below -25°C
• Popular for monitoring vaccines, frozen blood samples, biologics, pharmaceuticals, medication, and other heat sensitive material.
• Recommended for monitoring environments at or below -50°C
• Cryoguard indicators have a shelf life of eight months. The shelf life applies whether the indicator is activated or unactivated. An expiration date appears on the label on each indicator.