Dragino D20-LB/LS LoRaWAN Waterproof / Outdoor Temperature Sensor

D20-LB/LS LoRaWAN Waterproof Temperature Sensor is a LoRaWAN Temperature Sensor for Internet of Things solution. D20-LB or D20-LS will convert the Temperature reading to LoRaWAN wireless data and send to IoT platform via LoRaWAN gateway.

The LoRa wireless technology used in D20-LB or D20-LS allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.

The temperature sensor used in D20-LB or D20-LS can measure -55°C ~ 125°C with accuracy ±0.5°C (max ±2.0 °C).

D20-LB/LS LoRaWAN Waterproof Temperature Sensor supports temperature alarm feature, user can set temperature alarm for instant notice. D20-LB or D20-LS supports Datalog feature, it can save the data when there is no LoRaWAN network and uplink when network recover.

D20-LB or D20-LS supports BLE configure and wireless OTA update which make user easy to use.

D20-LB or D20-LS is powered by 8500mAh Li-SOCI2 battery or solar powered + li-on battery it is designed for long term use up to 5 years.

Each D20-LB or D20-LS is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.

• LoRaWAN 1.0.3 Class A
• Ultra-low power consumption
• 1 x DS18B20 Temperature sensor, 2 meters
• Measure range -55°C ~ 125°C
• Temperature alarm
• Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
• Support Bluetooth v5.1 and LoRaWAN remote configure
• Support wireless OTA update firmware
• Uplink on periodically
• Downlink to change configure
• IP66 Waterproof Enclosur
• 8500mAh Li/SOCl2 Battery (D20/D20S-LB)
• Solar panel + 3000mAh Li-on battery (D20/D20S-LS)

Applications: 

• Smart Farming

Common DC Characteristics:

• Supply Voltage: Built-in Battery , 2.5v ~ 3.6v
• Operating Temperature: -40 ~ 85°C

Temperature Sensor:

• Dallas DS18B20
• Range: -55 to + 125°C
• Accuracy ±0.5°C (max ±2.0 °C).

LoRa Spec:

• Frequency Range,  Band 1 (HF): 862 ~ 1020 Mhz
• Max +22 dBm constant RF output vs.
• RX sensitivity: down to -139 dBm.
• Excellent blocking immunity

Battery:

• Li/SOCI2 un-chargeable battery
• Capacity: 8500mAh
• Self-Discharge: <1% / Year @ 25°C
• Max continuously current: 130mA
• Max boost current: 2A, 1 second

Power Consumption

• Sleep Mode: 5uA @ 3.3v
• LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm