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S31-NB NB-IoT Temperature Humidity Sensor

  • $199.00
  • Save $50
  • (Exc. GST)

  • Available in stock

  • $ We Ship from our stock in AU (Perth) with pickup option, and Prices are Exc. GST
  • $ We Offer Quantity Discounts for Large Orders 10+ qty (Request for Quote)
  • $ We Accept Purchase Orders & Net 30 Payment for Eligible Accounts

    S31-NB NB-IoT Temperature Humidity Sensor

    The Dragino S31-NB and S31B-NB are NB-IoT Temperature and Humidity Sensor for Internet of Things solutions. It is used to measure the surrounding environment temperature and relative air humidity precisely, and then upload to the IoT server/cloud via NB-IoT network.

    The temperature & humidity sensor used in S31-NB / S31B-NB is SHT31, which is fully calibrated, linearized, and temperature-compensated digital output from Sensirion, it provides strong reliability and long-term stability. The SHT31 is fixed in a waterproof anti-condensation casing for long-term use.

    S31-NB / S31B-NB supports different uplink methods including TCP, MQTT, and UDP for different application requirements, and supports uplinks to various IoT Servers.

    S31-NB / S31B-NB is powered by an 8500mAh Li-SOCI2 battery, It is designed for long-term use up to several years. (Real-world battery life depends on the use environment, update period, and uplink method. Please check the related Power Analyze report).

    S31-NB / S31B-NB has the optional built-in SIM card and default IoT server connection version. Which makes it works with simple configure.


    • NB-IoT Sensor Node,B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B28/B66/B70/B85 @H-FDD
    • Ultra Low Power Consumption
    • Monitor environment temperature
    • Monitor relative air humidity
    • Temperature & Humidity alarm
    • Multiply Sampling and one uplink
    • 8500mAh Battery for long-term use
    • 3 meters sensor cable ( for S31-NB)
    • Support BLE remote configure and update firmware
    • Uplink on periodically
    • IP66 Waterproof Enclosure
    • AT Commands to change parameters
    • Uplink via MQTT, MQTTs, TCP, or UDP


    • Smart Buildings & Home Automation
    • Logistics and Supply Chain Management
    • Smart Agriculture
    • Smart Cities 


    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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