LSN50v2-S31B Temperature & Humidity Sensor

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.

The temperature & humidity sensor used in LSN50v2-S31B is SHT31, which is fully calibrate, linearized, and temperature compensated digital output from Sensirion, it provides a strong reliability and long-term stability. The SHT31 is fixed in a waterproof anti-condensation casing for long term use.

LSN50v2-S31B supports temperature and humidity alarm feature, user can get alarm for instant notice.

LSN50v2-S31B is powered by 8500mAh Li-SOCI2 battery, it is designedfor long term use up to 10 years. (Actually Battery life depends on the use environment, update period. Please check related Power Analyze report).

Each LSN50v2-S31B is pre-load with a set of unique keys for LoRaWAN registration, register these keys to local LoRaWAN server and it will auto connect after power on.

Features:

• LoRaWAN v1.0.3 Class A
• Ultra low power consumption
• On-device SHT31 probe
• Measure range -40ºC ~ 80ºC
• Temperature alarm
• Bands: CN470/EU433/KR920/US915/EU868/AU915/IN865
• AT Commands to change parameters
• Uplink on periodically or Interrupt
• Downlink to change configure

Applications:

• Wireless Alarm and Security Systems
• Home and Building Automation
• Automated Meter Reading
• Industrial Monitoring and Control
• Long range Irrigation Systems, etc

Specifications:

Temperature Sensor:

• Range: -40 to + 80ºC
• Accuracy: ±0.2 @ 0-90 °C
• Resolution: 0.01°C
• Long Term Shift: <0.03 °C/year

Humidity Sensor:

• Range: 0 ~ 99.9% RH
• Accuracy: ± 2%RH ( 0 ~ 100%RH)
• Resolution: 0.01% RH
• Long Term Shift: <0.25 %RH/year