General Description
The Dragino S31B-LB/LS is a temperature and humidity sensor designed for outdoor IoT applications. It uses LoRaWAN technology to transmit accurate environmental data over long distances with minimal power consumption. Equipped with the Sensirion SHT31 sensor, it ensures long-term reliability and stability. Its IP66 waterproof housing makes it ideal for outdoor use.
Targeted Applications
- Building automation and home automation
- Cold chain management and logistics
- Smart agriculture and greenhouses
- Smart cities and environmental monitoring
- Laboratories and industrial environments
Highlights
- LoRaWAN 1.0.3 Class A Technology
- Accurate and stable SHT31 sensor
- IP66 waterproof enclosure for outdoor use
- Powered by 8500mAh battery (S31B-LB) or solar panel + 3000mAh battery (S31B-LS)
- Temperature and humidity alarm function
- Data logging in case of network loss (Datalog)
- Setup via Bluetooth v5.1 and OTA updates
Technical Specifications
General Characteristics |
Operating temperature range |
-40°C to +85°C |
Supply voltage |
2.5V to 3.6V (built-in battery) |
Temperature Sensor |
Measuring range |
-40°C to +80°C |
Precision |
±0.2°C (0-90°C) |
Resolution |
0.1°C |
Long-term drift |
<0.03°C/year |
Humidity Sensor |
Measuring range |
0% to 99.9% RH |
Precision |
±2% RH |
Resolution |
0.01% RH |
Long-term drift |
<0.25% RH/year |
LoRa Specifications |
Frequency range |
862 to 1020 MHz |
Maximum RF power |
+22 dBm |
RX sensitivity |
Up to -139 dBm |
Immunity to jamming |
Excellent |
Battery |
Kind |
Non-rechargeable Li/SOCI2 (S31B-LB) or solar panel + Li-ion 3000mAh (S31B-LS) |
Ability |
8500mAh (S31B-LB) |
Self-discharge |
<1%/year at 25°C |
Maximum continuous current |
130mA |
Max boost current |
2A for 1 second |
Electricity Consumption |
Sleep mode |
5µA @ 3.3V |
LoRa transmission mode |
125mA @ 20dBm, 82mA @ 14dBm |
Interfaces and Connectors
- LoRaWAN 1.0.3 Class A interface
- Bluetooth v5.1 for local configuration
- Support for OTA updates via LoRaWAN
- Compatible with frequency bands: CN470, EU433, KR920, US915, EU868, AS923, AU915, IN865
Pack Contents
- 1 x S31B-LB or S31B-LS Temperature & Humidity Sensor
- 1 x External Antenna
Dimensions and Weight
- Dimensions: 120 x 55 x 200 mm
- Weight: 370 g