S500 GSM data logger was designed to monitor temperature & humidity with capability to send alarming message to phone numbers set up by customers when temperature data is out of pre-definded limits; and will send good news message when data is back within pre-defined limits. In addition,customer can get real-time data message by calling phone number in the logger.
This series use original sensor import from America or Switzerland, has high accuracy and stable. The user can also calibration the instrument by deviation.
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