S31B-LB LoRaWAN Temperature and Humidity Sensor Node 868MHz

The S31B-LB LoRa Module is a 868 Mhz Long Range LoRa sensor node for indoor and outdoor use. The S31B-LB uses a highly accurate SHT31 temperature and humidity sensor by Sensirion. Thanks to its waterproof casing, the SHT31 is suited for long-term outdoor use. This robust sensor node, packaged in a weatherproof housing, is ideal for outdoor use and is powered by an 8500mA Li/SOCl2 battery, ensuring a long operating time. The S31B-LB is more than just a sensor node. It was designed to enable the rapid implementation of industrial LoRa and IoT solutions. The wireless part of the node is based on the SX1262, which allows data transmission over very long distances at low data rates. This ensures an exceptionally wide range, high interference immunity, and optimizes power consumption. Equipped with a powerful 48 MHz ARM microcontroller, 256KB flash and 64KB RAM, the PS-LB-NA is equipped for all types of projects. The S31-LB has an integrated BLE module, which allows convenient configuration of the sensor from your mobile phone. It also supports OTA updates via a private LoRa protocol, which greatly simplifies maintenance. This sensor node is the third generation of the popular LSN50v2-S31B from Dragino and offers a mature LoRaWAN stack as well as application software. You can use the pre-installed software for your IoT projects or adapt the software flexibly to different requirements. 

Each sensor is pre-loaded with a set of unique keys for LoRaWAN registrations. These keys are registered on the local LoRaWAN server and the sensor automatically connects when powered on if network coverage is available. 

Recommended accessories:  

• Lora Gateway

Features : 

• Highly accurate SHT31 temperature and humidity sensor by Sensirion 
  
• LoRaWAN 1.0.3 Class A 
  
• SX1262 LoRa Core 
  
• 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 for configuration change 
  
• 8500mAh Li/SOCl2 battery for long operating time 
  
• Waterproof according to IP65 
  
• Optimized casing with new pressure compensation fitting 
  
• External LoRa antenna 

Main areas of application of the S31B-LB: 

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

Links and Download: 

• Dragino Wiki

Technical Details: 

• Manufacturer: Dragino 
• Manufacturer SKU: S31B-LB-EU868 
• Microcontroller: 
• MCU: 48 MHz ARM 
• Flash: 256KB 
• RAM: 64KB 
• Supply voltage: 2.5V ~ 3.6V 
• Operating temperature: -40 ~ 85°C 
• LoRa specifications: 
• Frequency range: 868MHz / EU868  
• Maximum +22 dBm constant RF output against 
• 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 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 
• Battery: 
• Li/SOCI2 non-rechargeable battery 
• Capacity: 8500mAh 
• Self-discharge: <1% / year @ 25°C 
• Maximum continuous current: 130mA 
• Maximum peak current: 2A, 1 second 
• Power consumption: 
• Sleep mode: 5uA @ 3,3V 
• LoRa transmit mode: 125mA @ 20dBm, 82mA @ 14dBm 
• Dimensions: 144 x 78 x 51mm  
• Weight: 225g 

Delivery contents: 

• 1x S31B-LB LoRaWAN temperature and humidity sensor node 868MHz   
• 1x External 868MHz antenna