Tzone Temperature Indicator with LED Alarm 10 Packs Disposable Temp Indicator Strip (-30℃ to 70℃) IP67 Waterproof Single Use Temp Indicators for Shipping Cold Chain Transportation Food Storage

["Single Use Temperature Indicator -- As a quick inspection tool, it's used to check whether the product is in a usable state during shipping and receiving processes; Disposable indicator design, saving time and money without recall","Small and Compact -- Equipped with circular adhesive backing, can be placed anywhere and prevent loss; IP67 Waterproof, can work well in a high humidity enviroment; Small and compact, easy to carry and save space","Wide Temperature Range -- The measurement range of the temp indicator is -30 ℃ to 70 ℃; High temperature alarm is >8℃, the red light flashes every 10s; Low temperature alarm is <2℃, the blue light flashes every 10s; Accuracy is ±0.5℃, Start delay time is 30 minutes","Wide Application -- Wide used in shipping, food processing, storage, industrial manufacturing, and cold chain transportation. Check the ambient temperature whether in a stable state anytime","LED Alarm: Features an LED light to shows temperature high and low alarms, allowing you to see at a glance if the ambient temperature is in a stable state to protect temperature-sensitive products"]