The Dragino D20-NB is a NB-IoT Temperature Sensor for Internet of Things solution. D20-NB will convert the Temperature reading to upload the sensor data send to IoT platform via NB-IoT network.

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

D20-NB supports temperature alarm feature, user can set temperature alarm for instant notice. D20-NB supports Datalog feature, it can save the data when there is no NB-IoT network and uplink when network recover.

D20-NB supports diferent uplink methods including MQTT, MQTTs, UDP & TCP for diferent application requirement, and support uplinks to various IoT Servers.

D20-NB supports BLE confgure and OTA update which make user easy to use.

D20-NB is powered by 8500mAh Li-SOCI2 battery, it is designed for long-term use up to several years.

D20-NB has optional built-in SIM card and default IoT server connection version. Which makes it works with simple confguration.

Features:

• NB-IoT Bands:B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B28/B66/B70/B85 @H-FDD
• Ultra Low Power Consumption
• 1 x DS18B20 Temperature probe
• Measure range: -55°C ~ 125°C
• Temperature alarm
• IP66 Waterproof Enclosure
• Support BLE remote configure and update firmware
• Uplink on periodically
• Downlink to change configure
• 8500mAh Battery for long term use
• Nano SIM card slot for NB-IoT SIM

Specifications:

Common DC Characteristics :

• Supply Voltage: 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).

NB-IoT Module: BC660K-GL

Support Bands:

• B1 @H-FDD: 2100MHz
• B2 @H-FDD: 1900MHz
• B3 @H-FDD: 1800MHz
• B4 @H-FDD: 2100MHz
• B5 @H-FDD: 860MHz
• B8 @H-FDD: 900MHz
• B12 @H-FDD: 720MHz
• B13 @H-FDD: 740MHz
• B17 @H-FDD: 730MHz
• B18 @H-FDD: 870MHz
• B19 @H-FDD: 870MHz
• B20 @H-FDD: 790MHz
• B25 @H-FDD: 1900MHz
• B28 @H-FDD: 750MHz
• B66 @H-FDD: 2000MHz
• B70 @H-FDD: 2000MHz

• B85 @H-FDD: 700MHz 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：

• STOP Mode: 10uA @ 3.3v

• Max transmit power: 350mA@3.3v

Documents: - DataSheet, Document Base - User Manual -- Online Latest - Shared Folder for all Dragino Products

Package Includes:

• 1 x D20-NB NB-IoT Temperature Sensor

• External antenna x 1 Dimension and weight:

• Device Size: 120 * 55 * 200 mm

• Device Weight: 372g

**Part Number :D20-NB-XX(designed for used in Soil or Road)

XX:

GE: General version ( Exclude SIM card) 1T: with 1NCE * 10 years 500MB SIM card and Pre-configure to ThingsEye server