Dragino D22-LB Dual-Probe LoRaWAN Temperature Sensor

Common Electrical Characteristics

• Supply Voltage: Built-in battery (2.5V ~ 3.6V)
• Operating Temperature: -40°C to 85°C

Temperature Sensors

• Sensor Model: 2 × Dallas DS18B20
• Measurement Range: -55°C to +125°C
• Accuracy: ±0.5°C (max ±2.0°C)

LoRa Specifications

• Protocol: LoRaWAN® 1.0.3 Class A
• Frequency Bands: IN865
• Frequency Range (HF): 862 ~ 1020 MHz
• Max RF Output: +22 dBm
• RX Sensitivity: Down to -139 dBm

Battery (D22-LB Variant)

• Type: Li/SOCI2 non-rechargeable
• Capacity: 8500mAh
• Self-Discharge: <1% per year @ 25°C
• Max Continuous Current: 130mA
• Max Boost Current: 2A (1 second)

Power Consumption

• Sleep Mode: 5µA @ 3.3V
• LoRa Transmit Mode: 125mA @ 20dBm / 82mA @ 14dBm

Mechanical

• Enclosure Rating: IP66 Waterproof
• Device Size: 120 × 55 × 200 mm
• Device Weight: 372 g

Package Includes

• 1 × D22-LB LoRaWAN® Waterproof Outdoor Temperature Sensor

The Dragino D22-LB Two Probes LoRaWAN® Temperature Sensor is suitable for:

• Industrial automation and dual-point temperature monitoring
• Cold chain and refrigeration systems
• Manufacturing plants and process industries
• Water systems and utility infrastructure
• Outdoor environmental monitoring
• Power distribution rooms
• Warehouses and storage facilities
• Campuses and institutional infrastructure
• Commercial infrastructure and distributed IoT deployments

Dual probes allow simultaneous monitoring of two separate points, making it ideal for equipment inlet/outlet monitoring or multi-zone temperature tracking across Indian industrial sites.