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Dragino S31B-LB LoRaWAN Temperature & Humidity Sensor

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₹ 7,020.00
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Dragino S31B-LB LoRaWAN Temperature & Humidity Sensor

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Dragino S31B-LB is a LoRaWAN® temperature and humidity sensor designed for accurate environmental monitoring in industrial, commercial, building automation and outdoor IoT applications. It uses a Sensirion SHT31 temperature and humidity sensor installed directly in the device, providing a temperature measurement range of -40°C to 80°C with ±0.2°C accuracy and relative humidity measurement from 0 to 99.9% RH. The S31B-LB supports LoRaWAN 1.0.3 Class A communication, temperature and humidity alarms, datalog storage, Bluetooth 5.1 configuration, LoRaWAN remote configuration and wireless OTA firmware updates. With an IP66 waterproof enclosure, 8500mAh Li-SOCl2 battery and IN865 frequency support, it is suitable for long-term wireless environmental monitoring deployments in India.

₹ 7,020.00 7020.0 INR ₹ 7,020.00

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  • LoRaWAN® 1.0.3 Class A compliant
  • High-precision Sensirion SHT31 temperature & humidity sensor
  • IP66 waterproof enclosure for outdoor use
  • Ultra-low power consumption design
  • 8500mAh Li/SOCl2 battery (up to 5 years operation)
  • Temperature & humidity alarm alerts
  • Datalog feature for network outage backup
  • Bluetooth v5.1 configuration support
  • Remote configuration via LoRaWAN® downlink
  • Wireless OTA firmware updates
  • Supports IN865 band

Common DC Characteristics

  • Supply Voltage: Built-in battery, 2.5V ~ 3.6V
  • Operating Temperature: -40°C to 85°C

Temperature Sensor

  • Range: -40°C to +80°C
  • Accuracy: ±0.2°C (0–90°C)
  • Resolution: 0.1°C
  • Long-term shift: <0.03°C/year

Humidity Sensor

  • Range: 0 to 99.9% RH
  • Accuracy: ±2% RH
  • Resolution: 0.01% RH
  • Long-term shift: <0.25% RH/year

LoRa Specifications

  • Frequency Range (HF Band): 862 ~ 1020 MHz
  • Supported Bands: IN865
  • Max +22 dBm RF output
  • RX Sensitivity: up to -139 dBm
  • High interference immunity

Battery

  • Type: Li/SOCl2 non-rechargeable battery
  • Capacity: 8500mAh
  • Self-discharge: <1% per year @ 25°C
  • Max continuous current: 130mA
  • Max boost current: 2A (1 second)

Power Consumption

  • Sleep Mode: 5uA @ 3.3V
  • LoRa Transmit Mode:
    • 125mA @ 20dBm
    • 82mA @ 14dBm

Mechanical

  • IP66 waterproof enclosure
  • Device Size: 120 × 55 × 200 mm
  • Device Weight: 370g

Package Includes

  • 1 × S31B-LB LoRaWAN® Temperature & Humidity Sensor

The Dragino S31B-LB LoRaWAN® Temperature & Humidity Sensor is suitable for:

  • Industrial automation and environmental monitoring
  • Commercial building management systems
  • Water systems and pump stations
  • Cold chain storage and logistics monitoring
  • Manufacturing plant climate control
  • Utilities and smart metering infrastructure
  • Public infrastructure and smart city projects
  • Campuses, hospitals, and institutional facilities
  • Long-range irrigation systems

You can purchase the genuine Dragino S31B-LB LoRaWAN® Temperature & Humidity Sensor from AIoTkart®, an Authorized Dragino Distributor in India offering nationwide delivery and bulk supply support.

Yes, the S31B-LB supports IN865 and global LoRaWAN® frequency bands, features IP66 protection, and offers ultra-low power consumption, making it ideal for industrial, utility, and infrastructure monitoring applications.

Yes, the built-in datalog feature allows the S31B-LB to store temperature and humidity readings locally when LoRaWAN® connectivity is unavailable and automatically transmit them once the network is restored.

Documents

User Manual
Download

PS-LS-T_Datasheet

Download

S31B-LB_Firmware 

Download

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