User's Manual Part 1

CHAPTER 1 About the Savi SensorTag ST-673
6 Savi SensorTag ST-673 Installation Guide
Tag Description
Environmental Sensors
The environmental sensors monitor and record the temperature and humidity
of the tag’s surrounding area at user-specified times in an environmental log.
You can set maximum and minimum temperature and humidity threshold.
If the temperature or humidity should rise above or fall below the threshold,
the device writes the time and date of the deviation to an alarm log and
sends an RF beacon to surrounding fixed readers. For example, if you are
monitoring in an area that needs to be kept at temperatures between x and y
degrees to preserve a product, you can set the Savi SensorTag ST-673 to RF
beacon mode and record the date and time whenever the temperature
deviates from your specified range.
RFID Communication Module
The communication module operates at 433 MHz, enabling the Savi
SensorTag ST-673 to communicate back to the Savi network with excellent
RF performance in both metallized and non line-of-sight environments.
The temperature sensor inside
the tag gauges the surrounding
environment’s temperature
when air passes through this
vent