*****The Cryoguard™ Activation Tool is recommended for proper activation of the Cryoguard™ M-50 Thermal Exposure Indicator. *****

M-50 Cryoguard Thermal Exposure Indicator

• Recommended for monitoring environments at or below -75 degrees Celsius
• Subzero temperature sensor
• Signal temperature: -50 degrees Celsius
• Activated product turns red if exposed to temperatures above -50 degrees Celsius
• Popular for tracking the temperature of oocytes/"eggs", embryos, sperm, vitrified samples & more
• Can be used to monitor materials shipped or stored at or below -75⁰C such as in liquid nitrogen or dry ice

• 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.