Dragino WSC2-N-GE, NB-IoT Transmitter for Weather Stations, without SIM Card

The Dragino WSC2-N is the NB-IoT version of the WSC2 weather station transmitter: it reads connected weather sensors via RS485 and pulse input and transmits the measured values directly to an IoT server via the cellular network. This eliminates the need for a dedicated LoRaWAN gateway; the only requirement is NB-IoT network coverage at the location. It supports all sensors in the Dragino WSS series as well as third-party RS485 sensors, and data transmission can be performed via MQTT, MQTTS, TCP, UDP, or CoAP.

Key Features:

• NB-IoT cellular connectivity with broad band support, no separate gateway required
• Data transmission via MQTT, MQTTS, TCP, UDP, or CoAP to private servers or IoT platforms
• Supports all Dragino WSS weather sensors, third-party RS485 sensors, and optical or tipping bucket rain gauges via the pulse input
• Configuration via Bluetooth 5.1, AT commands, or downlink; firmware updates via Bluetooth or wirelessly via OTA
• External 12V supply with integrated 1000 mAh Li-ion battery as a buffer, IP66-rated housing for outdoor use

Specifications:

Cellular

• Technology: NB-IoT
• Frequency bands: B1, B2, B3, B4, B5, B8, B12, B13, B17, B18, B19, B20, B25, B28, B66, B70, B85 (H-FDD)
• SIM card: not included (version -GE)
• Protocols: MQTT, MQTTS, TCP, UDP, CoAP

Interfaces

• RS485 for Dragino WSS sensors and third-party sensors
• Pulse input for rain gauges
• Up to 3 sensors can be connected directly; additional sensors can be connected via the 1-to-4 adapter cable DR-F6C-4M (sold separately)

Configuration and Firmware

• Bluetooth 5.1 (configuration and firmware update)
• AT commands
• Downlink
• Wireless firmware update (OTA)

Power Supply

• Input and charging voltage: 12V DC
• Integrated battery: 1000 mAh Li-ion, rechargeable

Housing

• Protection class: IP66

Scope of Delivery

• 1 × WSC2-N-GE transmitter (without SIM card, without sensors, without solar power supply)

Compatible Sensors:

• WSS-09, 9-in-1 weather sensor with ultrasonic wind measurement
• WSS-08, optical rain gauge
• WSS-21, tipping bucket rain gauge
• WSS-22, wind speed and direction sensor
• WSS-23, CO2 and particulate matter sensor PM2.5/PM10
• WSS-24, rain and snow sensor with heating
• WSS-25, temperature, humidity, light, and air pressure sensor
• WSS-26, global radiation sensor
• WSS-27, PAR sensor

Commissioning Note: The -GE version is supplied without a SIM card and without a pre-configured server. Before use, an NB-IoT-capable SIM card must be inserted, the APN set, and the target server configured via AT command. NB-IoT coverage at the site should be verified in advance.

Application Areas:

• Agricultural weather stations in regions without LoRaWAN infrastructure, e.g., individual farms or scattered test sites
• Individual, widely distributed measurement sites where a dedicated LoRaWAN gateway per site is not cost-effective
• Municipal climate and environmental monitoring networks with direct connection to existing MQTT or cloud platforms
• Locations with challenging radio propagation, e.g., basement shafts or densely built-up areas, where NB-IoT benefits from its high building penetration

Documents:

User Manual