1. Over-temperature Alarm: When the recording value is less than 2°C or great than 8°C, it inform the abnormal situation in time, and the 'OK' indicator flash green every 10 seconds. When recording, in alarm, ''Alarm'' LED flash red every 10 seconds 2. Large-capacity Data Storage: 18,000 data capacity to meet the needs of long-term recording, recording interval of 10 minutes, data full of automatic stops 3. Automatic Generation of PDF Reports: no need to download any software 4.IP67 waterproof suit: PET film, dustproof, moistureproof, waterproof 5. Wide Application: applicable to warehouse storage and logistics cold chain links such as refrigerated trucks, refrigerated distribution boxes, cold storage, etc. Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Color: As shown Material: Plastic Package Contents: 1x Temperature recorder 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.