DRAGINO - LoRaWan waterproof temperature sensor

The Dragino D20S-LB product is a LoRaWAN temperature sensor. The sensor converts the temperature reading into LoRaWAN wireless data and sends it to the IoT platform via the LoRaWAN gateway.

The LoRa wireless technology used in the D20-LB allows the device to send data and achieve extremely long ranges at low data rates. It provides ultra-long range spread spectrum communication and high interference immunity while minimizing power consumption.

The temperature sensor used can measure -55°C ~ 125°C with an accuracy of ±0.5°C (max ±2.0°C).

In addition, it supports temperature alarm function. User can set temperature alarm for instant notification. D20-LB supports Datalog function, it can log data when there is no LoRaWAN network and uplink when network recovery.

The LoraWan temperature sensor is powered by an 8500 mAh Li-SOCI2 battery, it is designed for long-term use up to 5 years.

Each sensor is preloaded with a set of unique keys for LoRaWAN recordings, save these keys to the local LoRaWAN server and it will automatically connect after power on.

Features:

• LoRaWAN 1.0.3 Class A
• Ultra low power consumption
• 1 x DS18B20 temperature sensor, 2 meters
• Measuring range -55°C ~ 125°C
• Temperature alarm
• Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
• Support for Bluetooth v5.1 and LoRaWAN remote configuration
• Support wireless OTA update firmware
• Uplink activated periodically
• Downlink to change configuration
• IP66 waterproof housing
• Li/SOCl2 battery 8,500 mAh

Common characteristics of direct current:

• Power 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 specification:

• Frequency range, band 1 (HF): 862 ~ 1020 MHz
• Maximum constant RF output of +22 dBm compared to
• RX sensitivity: up to -139 dBm.
• Excellent blocking immunity

Battery:

• Non-rechargeable Li/SOCI2 battery
• Capacity: 8,500 mAh
• Self-discharge: <1 an="" 25="" c="" p="">
• Maximum continuous current: 130 mA
• Maximum boost current: 2A, 1 second

Power consumption:

• Sleep mode: 5uA at 3.3v
• LoRa transmission mode: 125 mA at 20 dBm, 82 mA at 14 dBm