Description
The NB-2xIn is a compact NB-IoT (NarrowBand IoT) sensor interface designed for security and environmental monitoring. It connects two independent dry contact sensors and transmits their status to a SensDesk portal for real-time monitoring. The device is powered by a long-life internal battery (up to 3 years) or an external 5V DC power supply, making it ideal for remote locations.
NB-2xIn enables instant alerts for sensor events, such as door openings, smoke or gas detection, or motion detection. It supports email, SMS, and voice call alerts via the SensDesk ecosystem. With secure data transmission and simple installation, this device is an ideal choice for security, facility management, and industrial monitoring.
Features
- NB-IoT (Narrowband IoT) connectivity with global roaming support
- Two dry contact inputs for external sensors (door contacts, motion, gas, smoke detectors, etc.)
- Battery-powered (up to 3 years) or external 5V power supply
- Instant alerts via email, SMS, or voice calls (via SensDesk portal)
- Seamless integration with SensDesk cloud for remote monitoring
- Metal housing with DIN rail & rack mounting options
- Simple plug-and-play installation
Specifications
| Feature | Description |
|---|---|
| Network Connectivity | NB-IoT (NarrowBand IoT) cellular |
| Sensor Inputs | 2x dry contact inputs (digital input) |
| Supported Sensors | Door contacts, smoke/gas/motion detectors |
| Alerting & Notifications | Email, SMS, voice call (via SensDesk portal) |
| Data Transmission | NB-Push protocol (SensDesk cloud) |
| Power Supply | 5V adapter or internal battery |
| Battery Life | Up to 3 years (Li-MnO2 non-rechargeable) |
| Operating Temperature | -10°C to 70°C |
| Storage Temperature | -30°C to 30°C |
| Humidity Range | 0% to 100% RH |
| Housing & Dimensions | IP40, 67 × 31 × 69 mm, 151g |
| Prepaid SIM Card | Included in the subscribed version (3 years) |
| Portal Support | HWg-cloud.com (free) or SensDesk (paid) |
Applications and Usage
- Security & access control – door/window monitoring for unauthorised access
- Fire & gas leak prevention – integrates with smoke, gas, and motion detectors
- Smart building automation – detects open doors/windows for energy efficiency
- Industrial & facility monitoring – alerts for unauthorised access or equipment status











5 Devices | 1 User | 30 Day Log | 1 Report











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