Features: Accurate Temperature Data Logger with USB connection ensures precise monitoring for cold chain transportation, safeguarding temperature sensitive good during storage and transit. Equipped with automatic recording system and metal casing, this USB temperature logger provide reliable, long terms data tracking without manual intervention. Essential for biomedical researcher requiring compliant temperature documentation. Monitor perishable shipments in reefer trucks, or audit laboratory conditions with seamlessly temperature data collection. Features LED indicators alerts and plugs and play USB functionality, making temperature sensitive inventory management effortlessly across supply chains. Specifications: Power supply: Built-in wide temperature CR2032 button battery or USB port Temperature measurement ranging: -30℃-70℃ Temperature measurement accuracy: within the temperature measurement ranging of -20℃-40℃ Recording capacity: 32,000 groups Recording interval: 10 seconds-24 hours can be set as need Resolution: 0.1℃ Data: USB interfaces Size: 75x33x13mm Package Includes: 1pcs USB Temperature Data Logger note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.