Wide range of temperature measurement, it can store 10,000 data. 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 ±0.5°C and high sensitivity.It has small and compact size, easy to carry. Press and hold the "/Stop" button for more than 3s, the "OK" indicator be on for 3S, indicating that the device starts recording, and then you can place the device in the environment you need to monitor. Widely used for monitoring food, , chemical products and other transport and storage process. During the recording process, the device 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 no longer illuminate., Manufacturer: CTRLZS