M-15 Cryoguard Thermal Exposure Indicator

• Signal temperature: -15°C
• Activated indicator turns red when exposed to temperatures at or above -15°C
• Used for monitoring products shipped or stored at or below -40°C
• Popular for monitoring vaccines, frozen blood samples, biologics, pharmaceuticals, medication, and other heat sensitive material.
• Recommended for monitoring environments at or below -40°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.