Dragino D20 LoRaWAN Waterproof Outdoor Temperature Sensor (Industrial IoT, Long-Range, Low Power)
The Dragino D20 LoRaWAN Temperature Sensor is a robust, industrial-grade solution designed for reliable outdoor temperature monitoring across a wide range of IoT applications. Built for long-term deployment, the D20 delivers accurate temperature data over ultra-long distances using LoRaWAN® wireless technology.
Ideal for smart agriculture, environmental monitoring, cold chain logistics, water management, and industrial automation, the D20 seamlessly integrates with your IoT platform via a LoRaWAN gateway—enabling real-time monitoring, alerts, and data analytics.
Key Features
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LoRaWAN® 1.0.3 Class A for long-range, low-power communication
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Ultra-low power consumption for multi-year battery operation
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High-accuracy temperature sensing using DS18B20 probe
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Wide measurement range: -55°C to +125°C
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Configurable temperature alarms for real-time alerts
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Data logging (datalog feature) during network outages
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Bluetooth 5.1 (BLE) for easy configuration and commissioning
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Wireless OTA firmware updates for remote device management
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IP66 waterproof enclosure for harsh outdoor environments
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Flexible power options: long-life battery or solar-powered
Built for Long-Range, Low Power IoT
Powered by advanced LoRa® spread spectrum technology, the D20 delivers:
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Ultra-long communication range (several kilometres depending on environment)
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Excellent interference immunity in noisy industrial environments
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Minimal energy consumption, enabling up to 5 years battery life
This makes it ideal for remote and off-grid deployments where reliability and efficiency are critical.
Accurate Temperature Monitoring
The D20 is equipped with a high-precision DS18B20 temperature probe (2m cable):
- Measurement Range: -55°C to +125°C
- Accuracy: ±0.5°C typical (max ±2.0°C)
Perfect for applications such as:
- Cold storage & refrigeration monitoring
- Agriculture & greenhouse climate control
- Water tank and environmental monitoring
- Industrial process temperature tracking
Smart Alerts & Data Reliability
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Temperature alarm function: Get instant alerts when thresholds are exceeded
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Data logging capability: Stores readings when network is unavailable and uploads automatically once connectivity resumes
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Remote configuration: Adjust settings via LoRaWAN downlink or BLE
Power Options for Flexible Deployment
Choose the best power option for your application:
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D20/D20S-LB:
- 8500mAh Li-SOCl₂ battery
- Ultra-low self-discharge (<1% per year)
- Up to 5 years operational life
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D20/D20S-LS (Solar Version):
- Solar panel with 3000mAh Li-ion battery
- Ideal for long-term, maintenance-free installations
Technical Specifications
General
- Supply Voltage: 2.5V ~ 3.6V (built-in battery)
- Operating Temperature: -40°C to +85°C
- Enclosure: IP66 waterproof
Temperature Sensor
- Sensor Type: DS18B20
- Range: -55°C to +125°C
- Accuracy: ±0.5°C typical (max ±2.0°C)
- Probe Length: 2 metres
LoRaWAN
- Frequency Bands: EU868, US915, AU915, AS923, IN865, KR920, EU433, CN470
- Frequency Range: 862 ~ 1020 MHz
- Max RF Output: +22 dBm
- Sensitivity: up to -139 dBm
- Communication: LoRaWAN Class A
Battery (LB Version)
- Type: Li-SOCl₂ (non-rechargeable)
- Capacity: 8500mAh
- Self-Discharge: <1% per year @ 25°C
- Max Continuous Current: 130mA
- Peak Current: 2A (1 second)
Power Consumption
- Sleep Mode: ~5µA @ 3.3V
- Transmission:
- 125mA @ 20dBm
- 82mA @ 14dBm
Simple Deployment & Integration
Each D20 device is pre-configured with unique LoRaWAN keys, enabling quick onboarding:
- Register the device in your LoRaWAN network server
- Power on the device
- Automatically connect and start transmitting data
Typical Applications
- Smart agriculture & irrigation systems
- Environmental and weather monitoring
- Cold chain & refrigerated transport
- Water and tank monitoring systems
- Industrial IoT and remote asset monitoring
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