Time Temperature Indicator Ensuring Reliable Medical Shipments
Temperature control is significantly crucial for medical shipments, typically maintaining 2°C to 8°C. Any minor deviations could compromise the efficacy and safety of life-saving medicines, vaccines, and biological samples, etc. How do you know they’ve stayed within safe temperature limits while they travel across cities and countries? Meet AlertTag T20 – a single-use time temperature indicator ensuring reliable medical shipments.

Precise, Reliable Monitoring
AlertTag T20 time temperature indicator measures temperature from -40°C to +70°C (±0.5°C accuracy) on a battery life for up to one year. 10-minute start delay (customizable) prevents false alarms during pre-shipment handling, and IP67 rating enables it withstand harsh shipping environments.
Irreversible Alarms
Four alarm points are available based on cumulative or single-event triggers. The alarm points (1, 2, 3, or 4) are clearly and irreversibly displayed in case of data excursions, so you know exactly what went wrong and when. This is critical for biologics, reagents, vaccines, and other products with strict thermal requirements.

Slim Design, Perfect for Thermal Boxes, etc.
Alert Tag T20 single-use time temperature indicator is engineered to be 42mm* 42mm* 11mm and 17.7g. You can easily put it into even the tightest-packed thermal shipping boxes alongside vaccines, vials or reagents-- No bulky housing, no wasted space.
AlertTag T20 medical time temperature indicator is strictly calibrated with full ILAC traceability — so you can trust every reading. Freshliance, a trustworthy environmental logging solution provider, also delivers USB and IoT environmental logging solutions across various industries. For any questions, please feel free to contact us!




























