1. Widely used in all aspects of the refrigeration chain of storage and logistics, such as refrigerated containers, refrigerated trucks \ distribution boxes, etc.2. Bluetooth connection to read temperature data in real time, click the function button, open the Bluetooth broadcast, search and select the corresponding product ID number in the APP or scan the ID number on the back of the product to connect3. Compact size, easy to carry, high sensitivity4. USB plugged into the computer, the blue light continuous single flash, the red light state remains unchanged, generate reports5. 32000 groups of records storage, 1-255 minutes, temperature collection interval, can be set independently according to demand6. Temperature alarm setting, LED flashing warning, timely reporting of abnormalities to avoid losses caused by temperature changes7. Temperature range: -30-70 degrees Celsius8. Humidity range: 0-99%RH9. Scope of application: warehouse storage, pharmaceutical storage, cold chain transportation, reagent refrigeration, food refrigeration, greenhouse planting, etc.10. Size: 7.3 x 3cm11. Weight: about 20g