Description <br> Sensor: Built-in NTC thermistor <br> Data Interface: USB Interface <br> Data output: USB socket directly connected to the computer <br> Instructions for use: long press the key for more than 4 seconds, after the interface shows sign, it means the instrument start recording. <br> Application: It is mainly used to monitor and record the temperature data of foods, , chemicals, etc. during storage and transportation. It is widely used in all aspects of warehousing, logistics and cold chain, such as refrigerated containers, refrigerated trucks, refrigerated bags, cold storage, Laboratory etc. <br> <br> Type: Digital Temperature Data Logger <br> Power supply: Built-in wide temperature CR2032 button battery or USB interface <br> Material:ABS <br> colour:White + Blue <br> <br> Package Contents: <br> 1 x Digital Hygrometer <br> 1 x English manual <br> <br> Only the above package content, other are not included. <br> Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. <br>