Material: ABS Color: As Shown Temperature Measurement Range: -30~+60 Optional External Sensor: -40~+85 Precision: 1 Resolution: 0.1 Sensor: Internal Ntc Thermistor Communication Interface: Usb Interface Power Supply: Cr2450 Battery/Usb Interface Battery Life Drums: Room Temperature, If The Recording Interval Is Set To 15 Minutes, It Can Be Used For More Than A Year. Size: About 84*44*20Mm/3.3*1, 7 * 0.8 Inch Weight: Approx. 96G / 3.4Oz High Temperature Accuracy, 16000 Counts, Large Capacity Permanent Data Memory, Recording Interval Adjustable Easily Download Data Management To Computer Via Usb Interface, Data Can Be Queried, Saved , Printed And Exported To Word/Excel/Txt Alarm Sound, If The Temperature Data Exceeds The Set Value, A Sound Alarm Will Be Given Immediately. Two Long-Life Power Sources , Cr2450 Battery (Not Included) And Usb Interface Temperature Records Can Be Widely Used In All Aspects Of Warehousing, Logistics And Cold Chain, Such As Refrigerated Containers, Refrigerated Trucks, Refrigerated Packaging, Refrigerated Warehouses Ports, Laboratories , Etc. ,"