S31B-LS LoRaWAN Temperature and Humidity Sensor Node 868MHz with Solar

The S31B-LS from Dragino is a state-of-the-art sensor node for LoRaWAN, specifically designed for outdoor use. This model uses a combination of solar panels and a supporting battery to ensure optimal performance and durability in open-air environments. It integrates the precise SHT31 temperature and humidity sensor from Sensirion, housed in a waterproof casing, making it ideal for long-term use under variable weather conditions. The S31B-LS operates in the 868 MHz frequency band and uses the SX1262 LoRa Core, known for its long-range transmission capability and low energy consumption. These features enable reliable data communication over long distances with minimal power consumption. The built-in 48 MHz ARM microcontroller, along with 256KB Flash and 64KB RAM, ensures that the sensor node can handle even the most demanding industrial IoT applications. For easy maintenance and configuration, the S31B-LS supports Bluetooth V5.1 for local settings as well as OTA updates via LoRaWAN, allowing wireless firmware updates. The sensor comes with pre-installed, unique LoRaWAN keys that enable a quick and secure connection to the network.

Recommended Accessories:

• Lora Gateway

Features:

• Solar panel with additional battery for sustainable operation
• LoRaWAN 1.0.3 Class A
• SX1262 LoRa Core for efficient data transmission over long distances
• Extremely low power consumption
• Open-source hardware/software
• Easy configuration with AT commands via Bluetooth V5.1, LoRaWAN downlink, or UART
• Support for wireless OTA firmware update
• Periodic uplink function
• Downlink to change configuration
• Optimized housing with new pressure equalization screw
• External LoRa antenna

Main Applications of the S31B-LS:

• Wireless alarm and security systems
• Building automation
• Industrial monitoring and control

Links and Downloads:

• Dragino Wiki

Technical Details:

• Manufacturer: Dragino 
• Manufacturer SKU: S31B-LS-EU868
• Microcontroller: 
  • MCU: 48 MHz ARM 
  • Flash: 256KB 
  • RAM: 64KB 
• General DC Characteristics:
  • Operating Voltage: 0.9W solar panel and built-in battery
• Operating Temperature: -40 ~ 85°C
• LoRa Specifications: 
  • Frequency band: 868MHz / EU868  
  • Maximum +22 dBm constant RF output 
  • RX sensitivity: up to -139 dBm 
  • Excellent blocking immunity 
• Sensor:  
  • Type: SHT31 
  • Temperature Sensor: 
    • Range: -40 to + 80 ° C. 
    • Accuracy: ± 0.2 at 0-90 °C 
    • Resolution: 0.01°C 
    • Long-term drift: <0.03°C / year 
  • Humidity Sensor: 
    • Range: 0 to 99.9% RH 
    • Accuracy: ± 2% RH 
    • Resolution: 0.01% RH 
    • Long-term drift: <0.25% RH / year 
• Battery:
  • Type: Li-on battery (rechargeable)
  • Capacity: 3000mAh
• Power Consumption:
  • Sleep mode: 74µA at 3.8V
  • LoRa transmit mode: 236mA at 20dBm, 206mA at 14dBm
• Dimension: 108 x 102 x 40mm
• Weight: 282g 

Package Contents:

• 1x S31B-LS LoRaWAN Temperature and Humidity Sensor Node 868MHz with Solar
• 1x External 868MHz Antenna