
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.
✔ 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 Band: EU868
✅ 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 | EU868 |
| 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 |















