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Features:
Wall Attachable.
LoRaWAN v1.0.3 Class A protocol.
Built-in Temperature & Humidity sensor
Optional External Probe
Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
AT Commands to change parameters
Remote configure parameters via LoRaWAN Downlink
Firmware upgradable via program port
Support 2 x AAA LR03 batteries.
Datalog feature
IP Rating: IP52
Applications:
Smart Buildings & Home Automation
Logistics and Supply Chain Management
Smart Metering
Smart Agriculture
Smart Cities
Smart Factory
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Specification:
Built-in Temperature Sensor:
Resolution: 0.01 °C
Accuracy Tolerance : Typ ±0.3 °C
Long Term Drift: < 0.02 °C/yr
Operating Range: -40 ~ 80 °C
Built-in Humidity Sensor:
Resolution: 0.04 %RH
Accuracy Tolerance : Typ ±3 %RH
Long Term Drift: < 0.02 °C/yr
Operating Range: 0 ~ 96 %RH
External Temperature Sensor :
Resolution: 0.0625 °C
±0.5°C accuracy from -10°C to +85°C
±2°C accuracy from -55°C to +125°C
Operating Range: -55 °C ~ 125 °C
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* 1 x DS18B20 Temperature Probe
* Measure Range: -55°C ~ 125°C
* Accurancy: ±0.5°C (max ±2.0 °C)
* Cable Length: 2 Meters
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LoRaWAN v1.0.3 Class A
Ultra low power consumption
2 x External Temperature Probes
Measure range -55°C ~ 125°C
Temperature alarm
Bands: CN470/EU433/KR920/US915
EU868/AS923/AU915/IN865
AT Commands to change parameters
Uplink on periodically or Interrupt
Downlink to change configure
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Temperature Sensor:
Range: -40 to + 80°C
Accuracy: ±0.2 @ 0-90 °C
Resolution: 0.01°C
Long Term Shift: <0.03 °C/yr
Humidity Sensor:
Range: 0 ~ 99.9% RH
Accuracy: ± 2%RH ( 0 ~ 100%RH)
Resolution: 0.01% RH
Long Term Shift: <0.25 %RH/yr
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The Dragino LSN50v2-S31B is a LoRaWAN Temperature and Humidity Sensor  for Internet of Things solution. It is used to measure the surrounding environment temperature and relative air humidity  precisely, and then upload to IoT server via LoRaWAN wireless protocol.
Temperature Sensor:
Range: -40 to + 80°C
Accuracy: ±0.2 @ 0-90 °C
Resolution: 0.01°C
Long Term Shift: <0.03 °C/yr
Humidity Sensor:
Range: 0 ~ 99.9% RH
Accuracy: ± 2%RH ( 0 ~ 100%RH)
Resolution: 0.01% RH
Long Term Shift: <0.25 %RH/yr
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