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16 16  == 1.1 ​What is NDS01 NB-IoT Door Sensor ==
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19 -The Dragino NDS01 is a **NB-IOT Door Sensor** for Internet of Things solution. It is used to **detect the open/close event for door and uplink the event** to IoT server via NB-IoT network.
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20 +The Dragino NDS01 is a (% style="color:blue" %)**NB-IOT Door Sensor**(%%) for Internet of Things solution. It is used to (% style="color:blue" %)**detect the open/close event for door and uplink the event** (%%)to IoT server via NB-IoT network.
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21 21  Besides open/close event, NDS01 also has an internal temperature and humidity sensor which can detect the temperature and humidity inside the sensor.
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23 23  (% style="color:blue" %)**NarrowBand-Internet of Things (NB-IoT)**(%%) is a standards-based low power wide area (LPWA) technology developed to enable a wide range of new IoT devices and services. NB-IoT significantly improves the power consumption of user devices, system capacity and spectrum efficiency, especially in deep coverage.
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25 -NDS01 is powered by **2 x AAA batteries** for long term use.
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32 +NDS01 is powered by (% style="color:blue" %)**2 x AAA batteries**(%%) for long term use.
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27 27  *The measured temperature is 2~~3 degree higher than the actually environment temperature out of NDS01. 
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30 30  [[image:1668224602353-769.png]]
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