HW-group NB-2xIn

The HW-group NB-2xIn is a compact, robust IoT device designed for monitoring two digital inputs. With NB-IoT connectivity, it is ideal for remote or offline locations where LAN or Wi-Fi is not available. Through its inputs, it securely integrates sensors like door contacts, smoke detectors, gas sensors, or machine status contacts.

Status changes are transmitted energy-efficiently via Narrowband IoT to platforms such as SensDesk or HWg-Cloud, ensuring centralized monitoring, flexible alarms, and complete event logging.

Technical Features

• 2 × digital inputs (DI) for dry contacts with S0 pulse counting
• Connectivity: NB-IoT for secure, low-power data transmission
• Alerting: Notifications via email, push messages, optional SMS/voice via gateway
• Datalogger: Records up to 250,000 events with HWg-PDMS Excel export
• Power: Internal battery (up to 3 years) or external 5V PSU
• Rugged metal housing (IP40), desk, wall, or DIN-rail mount
• Operating range: –10 °C to +70 °C
• Protocols: NB-Push, CoAP, SNTP

Use Cases

• Data centers – monitoring doors, smoke detectors, system states
• Telecom sites – securing distributed sites via NB-IoT
• Building automation – supervising access, ventilation, or safety systems
• Industry – linking dry contacts from machinery and processes
• Smart cities & IoT – cloud integration for infrastructure management

Integration & Portals

Integration into SensDesk or HWg-Cloud enables central management of alarms, status, and history. Users gain graphical analysis, PDF reports, multi-user access, and alarm escalation. With SNMP and XML support, connectivity extends to SCADA and IT systems.

Alarm & Notifications

• Email & portal alerts to up to five recipients
• HWg-Push for instant cloud transfer
• SMS/voice via optional SMS gateways
• Configurable alarm triggers (thresholds, time conditions)

Variants & Packages

• NB-2xIn: Base device with 2 DI inputs
• NB-2xIn TSet: Package with device, Vodafone NB-IoT SIM (3 years), battery, 5V PSU

Conclusion

The HW-group NB-2xIn offers secure, long-life IoT monitoring of digital inputs over NB-IoT. With battery operation up to 3 years, datalogging, and cloud/SCADA integration, it is a future-proof solution for IT, telecom, smart building, and industrial monitoring.