Widely used suitable for monitoring food, , chemical products and other transport and storage process. After the record ends, you can directly insert the computer to get PDF report.Built in USB connector, directly connect PC or cellphone, no cable or reader required.With high precision 0.5C and high sensitivity.It has small and compact size, easy to carry. Wide range of temperature measurement, it can store 10,000 data. Press and hold the "Start/Stop" button suitable for more than 3s, the "OK" indicator will be on suitable for 3S, indicating that the device starts recording, and then you can place the device in the environment you need to monitor. During the recording process, the device will automatically light every 10s. If the normal indicator light (ie green light) is lit every 10s, it means that the device is not over temperature during the recording process. If the alarm indicator light (ie red light) is illuminated every 10 seconds, Explain that over-temperature has occurred during the recording process. Note: As long as over-temperature is found during the recording process, the green light will no longer illuminate. 3. Press and hold the "Start/Stop" button suitable for more than 3s, the alarm indicator (ie red light) will be on suitable for 3s, indicating that the device stops recording. The recording will also stop automatically when the device is full. After the device stops recording, it will not automatically flash. If the device is over-temperature during recording, press the "Start/Stop" button. If the normal indicator (green light) is on, it indicates that the temperature is not over-recorded during the recording; if the alarm is When the indicator light (ie red light) is on, it indicates that the temperature is over temperature during recording. 4. Remove the waterproof packaging bag and insert the device into the computer USB interface. During the PDFfile generation process, the normal indicator light (ie green light) and the alarm indicator light (ie red light) will turn on. When the file is generated, the normal indicator light (ie green light) It will remain lit until the recorder is removed from the computer. Colour:blue+white Material:plastic Package Contents: 1 x Temperature Data Logger Only the above package content, other products are not included. Note: Light reflection 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.