The Dragino S31-LB is a LoRaWAN® temperature and humidity sensor designed for remote environmental monitoring. It accurately measures ambient temperature and humidity, transmitting data via the LoRaWAN® network for smart agriculture, industrial automation, and climate monitoring applications.
The sensor is housed in an IP67-rated waterproof enclosure, ensuring durability in harsh environments. Its compact design allows for easy deployment in outdoor and indoor settings.
🔑 Key Features
✔ Accurate Temperature & Humidity Measurement – Uses high-precision sensors for reliable environmental data.
✔ LoRaWAN® Wireless Communication – Supports LoRaWAN® 1.0.3 Class A, compatible with multiple frequency bands, including EU868, US915, AS923, AU915, and CN470.
✔ Ultra-Low Power Consumption – Designed for long-term use with minimal maintenance, powered by a 3.6V Li-SOCl2 battery with years of operational life.
✔ Weatherproof & Durable Design – IP67-rated housing protects against dust and water, making it ideal for outdoor applications.
✔ Wide Application Range – Suitable for agriculture, smart buildings, cold chain monitoring, and environmental studies.
📦 Technical Specifications
✅ LoRaWAN® Protocol: 1.0.3, Class A
✅ Frequency Bands: EU868, US915, AS923, AU915, CN470
✅ Power Supply: 3.6V Li-SOCl2 battery
✅ Operating Temperature: -40°C to 85°C
✅ Enclosure Rating: IP67
✅ Dimensions: Refer to the datasheet for detailed measurements
📥 Product Downloads:
📑 Datasheet | 📘 User Manual
Feature | Specification |
Supply Voltage | Built-in Battery, 2.5V ~ 3.6V |
Operating Temperature | -40°C to 85°C |
Temperature Measurement Range | -40°C to 80°C |
Temperature Accuracy | ±0.2°C (0-90°C) |
Temperature Resolution | 0.1°C |
Temperature Long-Term Shift | <0.03°C/year |
Humidity Measurement Range | 0% to 99.9% RH |
Humidity Accuracy | ±2% RH (0-100% RH) |
Humidity Resolution | 0.01% RH |
Humidity Long-Term Shift | <0.25% RH/year |
LoRaWAN Compliance | LoRaWAN 1.0.3 Class A |
Frequency Bands | CN470, EU433, KR920, US915, EU868, AS923, AU915, IN865 |
Bluetooth Version | v5.1 |
Enclosure Rating | IP66 |
Battery Capacity | 8500mAh Li/SOCl₂ (S31-LB); 3000mAh Li-ion with Solar Panel (S31-LS) |
Battery Life | Up to 5 years |