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- LoRaWAN® 1.0.2 Protocol Compliance: Ensures interoperability with standard LoRaWAN® gateways and network servers.
- Dual Detection Functionality: Combines a magnetic contact sensor for open/close detection with an acoustic glass break sensor for enhanced security coverage.
- Ultra-Low Power Consumption: Designed for multi-year battery operation, minimizing maintenance and replacement costs.
- Long-Range Wireless Communication: Utilizes LoRa modulation for extended transmission distances, typically up to several kilometers in open environments.
- Compact and Lightweight Design: Suitable for discreet installation on windows, glass panels, or doors.
- Configurable Reporting: Supports periodic data transmission and event-based reporting for optimized network traffic and power efficiency.
- Tamper Detection: Alerts when the sensor housing is opened or removed from its mounting surface.
- High Sensitivity Glass Break Detection: Detects the acoustic signature of breaking glass within a defined frequency range, reducing false alarms.
- Flexible Mounting Options: Can be installed using adhesive pads or screws, depending on the surface and application.
- Over-the-Air Configuration: Supports remote configuration and firmware updates via LoRaWAN® downlink commands.
- Dual Detection Functionality: Combines a magnetic contact sensor for open/close detection with an acoustic glass break sensor for enhanced security coverage.
- Ultra-Low Power Consumption: Designed for multi-year battery operation, minimizing maintenance and replacement costs.
- Long-Range Wireless Communication: Utilizes LoRa modulation for extended transmission distances, typically up to several kilometers in open environments.
- Compact and Lightweight Design: Suitable for discreet installation on windows, glass panels, or doors.
- Configurable Reporting: Supports periodic data transmission and event-based reporting for optimized network traffic and power efficiency.
- Tamper Detection: Alerts when the sensor housing is opened or removed from its mounting surface.
- High Sensitivity Glass Break Detection: Detects the acoustic signature of breaking glass within a defined frequency range, reducing false alarms.
- Flexible Mounting Options: Can be installed using adhesive pads or screws, depending on the surface and application.
- Over-the-Air Configuration: Supports remote configuration and firmware updates via LoRaWAN® downlink commands.
1. Product Overview
Product Name: NV-R311CB
Model: NV-R311CB
Series: NV-R3xx LoRa Asset Sensor Series
Article Number: NV-R311CB
Manufacturer: Netvox Technology Co., Ltd.
The NV-R311CB is a wireless asset sensor designed for remote monitoring applications using LoRaWAN® technology. It integrates a window/door contact sensor and a glass break detector into a single compact unit, enabling reliable detection of intrusion, tampering, or environmental changes in residential, commercial, and industrial environments. The device operates under the LoRaWAN® 1.0.2 protocol, ensuring long-range, low-power communication suitable for IoT deployments requiring extended battery life and robust connectivity.
2. Key Features
- LoRaWAN® 1.0.2 Protocol Compliance: Ensures interoperability with standard LoRaWAN® gateways and network servers.
- Dual Detection Functionality: Combines a magnetic contact sensor for open/close detection with an acoustic glass break sensor for enhanced security coverage.
- Ultra-Low Power Consumption: Designed for multi-year battery operation, minimizing maintenance and replacement costs.
- Long-Range Wireless Communication: Utilizes LoRa modulation for extended transmission distances, typically up to several kilometers in open environments.
- Compact and Lightweight Design: Suitable for discreet installation on windows, glass panels, or doors.
- Configurable Reporting: Supports periodic data transmission and event-based reporting for optimized network traffic and power efficiency.
- Tamper Detection: Alerts when the sensor housing is opened or removed from its mounting surface.
- High Sensitivity Glass Break Detection: Detects the acoustic signature of breaking glass within a defined frequency range, reducing false alarms.
- Flexible Mounting Options: Can be installed using adhesive pads or screws, depending on the surface and application.
- Over-the-Air Configuration: Supports remote configuration and firmware updates via LoRaWAN® downlink commands.
3. Technical Specifications
- Communication Protocol: LoRaWAN® 1.0.2 Class A
- Frequency Bands: EU868 / US915 / AU915 / AS923 / KR920 / IN865 (region-dependent)
- Wireless Range: Up to 10 km (line-of-sight), typically 1–3 km in urban environments
- Power Supply: 1 × CR2450 lithium coin cell battery (replaceable)
- Battery Life: Up to 5 years (depending on reporting interval and environmental conditions)
- Operating Voltage: 2.4 – 3.6 V DC
- Operating Current: <10 µA (sleep mode), <30 mA (transmission)
- Operating Temperature: -20°C to +55°C
- Storage Temperature: -40°C to +85°C
- Relative Humidity: 0–95% RH (non-condensing)
- Dimensions: Approx. 70 mm × 35 mm × 15 mm (main unit)
- Weight: Approx. 40 g (including battery)
- Material: ABS flame-retardant plastic housing
- Color: White or light gray (standard)
- Mounting Method: Adhesive tape or screw mounting
- Detection Range (Magnetic Contact): ≤ 20 mm (typical)
- Glass Break Detection Range: Up to 5 m (depending on glass type and environment)
- Acoustic Frequency Range: 3–5 kHz (optimized for glass break sound patterns)
- Indicator: LED status indicator for pairing, transmission, and fault indication
- Ingress Protection: IP30 (indoor use)
4. Functionality
The NV-R311CB operates as a dual-function wireless sensor that monitors both window/door status and glass break events. The magnetic contact sensor detects the proximity between the main sensor body and a magnet placed on the movable part of a window or door. When the contact is broken (i.e., the window or door is opened), the sensor transmits an event message via LoRaWAN®.
The integrated glass break detector uses an acoustic sensor to identify the specific sound pattern associated with breaking glass. When a valid glass break event is detected, the sensor sends an immediate alarm message to the LoRaWAN® network.
The device periodically transmits status updates, including battery level and sensor state, and can be configured to report only on state changes to conserve power. It is compatible with standard LoRaWAN® network servers and can be integrated into IoT platforms for building automation, security monitoring, and asset protection.
Typical Use Cases:
- Window and door intrusion detection in residential or commercial buildings
- Glass break monitoring for storefronts, display cases, and office partitions
- Asset protection in warehouses, museums, and retail environments
- Integration with smart home or building management systems for real-time alerts
- Remote monitoring in off-grid or low-maintenance installations
Compatibility:
- Compatible with LoRaWAN® gateways and network servers compliant with LoRaWAN® 1.0.2
- Integrates with IoT platforms such as The Things Network (TTN), ChirpStack, or private LoRaWAN® servers
- Supports standard LoRaWAN® device activation methods (OTAA and ABP)
5. Components & Accessories
Included Items:
- NV-R311CB main sensor unit
- Magnetic contact piece
- Pre-installed CR2450 battery
- Adhesive mounting pads
- Quick installation guide
Optional Accessories:
- Replacement CR2450 battery
- Screw mounting kit
- External magnet (for extended gap installations)
- Configuration cable (for factory setup or advanced diagnostics)
Connectors and Interfaces:
- Internal battery holder (no external power connector)
- Internal acoustic sensor element
- Magnetic reed switch interface
- LED indicator for status feedback
6. Installation & Setup
Requirements:
- LoRaWAN® gateway within communication range
- Network server credentials (AppEUI, DevEUI, AppKey for OTAA activation)
- Mounting surface (glass, wood, or metal frame)
Mounting Options:
- Adhesive Mounting: Use the provided double-sided adhesive pads for quick, non-invasive installation on smooth surfaces.
- Screw Mounting: For permanent installations, use screws through the designated mounting holes.
Installation Steps:
1. Identify the installation location ensuring the sensor and magnet align properly when the window or door is closed.
2. Clean the surface to ensure proper adhesion.
3. Mount the main sensor body on the fixed frame and the magnet on the movable part.
4. Ensure the gap between the sensor and magnet does not exceed the specified detection range (≤ 20 mm).
5. Power on the device (battery pre-installed) and initiate LoRaWAN® activation (OTAA or ABP).
6. Verify successful network join via LED indication or network server logs.
7. Test open/close and glass break detection to confirm proper operation.
Configuration:
- Device parameters such as reporting interval, detection sensitivity, and transmission power can be configured via LoRaWAN® downlink commands.
- Supports firmware updates over the air (FOTA) when enabled by the network server.
7. Performance & Capabilities
Transmission Range:
- Up to 10 km line-of-sight; typical urban range 1–3 km depending on building density and gateway placement.
Battery Performance:
- Typical battery life up to 5 years with default reporting intervals (one message per hour and event-based triggers).
- Battery life may vary based on environmental temperature, transmission frequency, and network conditions.
Detection Performance:
- Magnetic Contact: Reliable detection of open/close events with minimal false triggers.
- Glass Break Sensor: Acoustic detection optimized for standard window glass (2–6 mm thickness).
- Response Time: <1 second for event detection and transmission.
Data Transmission:
- Uplink messages include sensor state, battery voltage, and device status.
- Downlink messages allow configuration and control.
- Adaptive Data Rate (ADR) supported for optimized network performance.
Limitations:
- Designed for indoor use; not suitable for outdoor or high-humidity environments.
- Glass break detection performance may vary with ambient noise levels or non-standard glass types (laminated, double-glazed).
- Requires LoRaWAN® network coverage for operation.
8. Standards & Compliance
- LoRaWAN® Specification: Version 1.0.2 compliant
- Radio Compliance:
- EU: EN 300 220
- US: FCC Part 15 Subpart C
- AU/NZ: AS/NZS 4268
- KR: KC Certification
- IN: WPC Compliance
- Safety Standards: EN 60950-1 / IEC 62368-1 (for low-voltage devices)
- Environmental Compliance: RoHS 2011/65/EU, REACH Regulation (EC) No 1907/2006
- Quality Management: Manufactured under ISO 9001 certified processes
- EMC Compliance: EN 301 489-1, EN 301 489-3
These certifications ensure the NV-R311CB meets international standards for radio performance, safety, and environmental responsibility, making it suitable for global deployment in IoT networks.
9. Additional Information
Warranty:
- Standard manufacturer warranty: 12 months from date of purchase against defects in materials and workmanship.
Support:
- Technical documentation, configuration guides, and firmware updates available through the manufacturer’s support portal.
- Customer support via email and authorized distributors.
Maintenance:
- Periodic inspection recommended every 12–24 months to verify sensor alignment and battery condition.
- Battery replacement required when low-battery warning is reported via LoRaWAN® uplink.
- Clean sensor surface with a dry cloth; avoid solvents or water exposure.
Firmware & Updates:
- Supports over-the-air firmware updates (FOTA) via LoRaWAN® downlink.
- Configuration parameters can be updated remotely without physical access.
Lifecycle & Sustainability:
- Designed for long-term operation with minimal maintenance.
- Components selected for low environmental impact and recyclability.
Applications Summary:
The NV-R311CB LoRa 1.0.2 Asset Sensor is ideal for smart building security, remote asset monitoring, and IoT-based intrusion detection systems. Its combination of magnetic contact and acoustic glass break detection provides comprehensive coverage for windows and glass surfaces, while LoRaWAN® connectivity ensures reliable, long-range communication with minimal power consumption.
Summary Statement:
The Netvox NV-R311CB LoRa 1.0.2 Asset Sensor is a compact, dual-function wireless device that integrates magnetic contact and glass break detection into a single LoRaWAN®-enabled unit. Engineered for low power consumption, long-range communication, and flexible installation, it provides a robust solution for security and asset monitoring applications. With compliance to international radio and safety standards, multi-year battery life, and remote configuration capabilities, the NV-R311CB is a reliable component for modern IoT ecosystems requiring secure, efficient, and scalable sensing solutions.
Product Name: NV-R311CB
Model: NV-R311CB
Series: NV-R3xx LoRa Asset Sensor Series
Article Number: NV-R311CB
Manufacturer: Netvox Technology Co., Ltd.
The NV-R311CB is a wireless asset sensor designed for remote monitoring applications using LoRaWAN® technology. It integrates a window/door contact sensor and a glass break detector into a single compact unit, enabling reliable detection of intrusion, tampering, or environmental changes in residential, commercial, and industrial environments. The device operates under the LoRaWAN® 1.0.2 protocol, ensuring long-range, low-power communication suitable for IoT deployments requiring extended battery life and robust connectivity.
2. Key Features
- LoRaWAN® 1.0.2 Protocol Compliance: Ensures interoperability with standard LoRaWAN® gateways and network servers.
- Dual Detection Functionality: Combines a magnetic contact sensor for open/close detection with an acoustic glass break sensor for enhanced security coverage.
- Ultra-Low Power Consumption: Designed for multi-year battery operation, minimizing maintenance and replacement costs.
- Long-Range Wireless Communication: Utilizes LoRa modulation for extended transmission distances, typically up to several kilometers in open environments.
- Compact and Lightweight Design: Suitable for discreet installation on windows, glass panels, or doors.
- Configurable Reporting: Supports periodic data transmission and event-based reporting for optimized network traffic and power efficiency.
- Tamper Detection: Alerts when the sensor housing is opened or removed from its mounting surface.
- High Sensitivity Glass Break Detection: Detects the acoustic signature of breaking glass within a defined frequency range, reducing false alarms.
- Flexible Mounting Options: Can be installed using adhesive pads or screws, depending on the surface and application.
- Over-the-Air Configuration: Supports remote configuration and firmware updates via LoRaWAN® downlink commands.
3. Technical Specifications
- Communication Protocol: LoRaWAN® 1.0.2 Class A
- Frequency Bands: EU868 / US915 / AU915 / AS923 / KR920 / IN865 (region-dependent)
- Wireless Range: Up to 10 km (line-of-sight), typically 1–3 km in urban environments
- Power Supply: 1 × CR2450 lithium coin cell battery (replaceable)
- Battery Life: Up to 5 years (depending on reporting interval and environmental conditions)
- Operating Voltage: 2.4 – 3.6 V DC
- Operating Current: <10 µA (sleep mode), <30 mA (transmission)
- Operating Temperature: -20°C to +55°C
- Storage Temperature: -40°C to +85°C
- Relative Humidity: 0–95% RH (non-condensing)
- Dimensions: Approx. 70 mm × 35 mm × 15 mm (main unit)
- Weight: Approx. 40 g (including battery)
- Material: ABS flame-retardant plastic housing
- Color: White or light gray (standard)
- Mounting Method: Adhesive tape or screw mounting
- Detection Range (Magnetic Contact): ≤ 20 mm (typical)
- Glass Break Detection Range: Up to 5 m (depending on glass type and environment)
- Acoustic Frequency Range: 3–5 kHz (optimized for glass break sound patterns)
- Indicator: LED status indicator for pairing, transmission, and fault indication
- Ingress Protection: IP30 (indoor use)
4. Functionality
The NV-R311CB operates as a dual-function wireless sensor that monitors both window/door status and glass break events. The magnetic contact sensor detects the proximity between the main sensor body and a magnet placed on the movable part of a window or door. When the contact is broken (i.e., the window or door is opened), the sensor transmits an event message via LoRaWAN®.
The integrated glass break detector uses an acoustic sensor to identify the specific sound pattern associated with breaking glass. When a valid glass break event is detected, the sensor sends an immediate alarm message to the LoRaWAN® network.
The device periodically transmits status updates, including battery level and sensor state, and can be configured to report only on state changes to conserve power. It is compatible with standard LoRaWAN® network servers and can be integrated into IoT platforms for building automation, security monitoring, and asset protection.
Typical Use Cases:
- Window and door intrusion detection in residential or commercial buildings
- Glass break monitoring for storefronts, display cases, and office partitions
- Asset protection in warehouses, museums, and retail environments
- Integration with smart home or building management systems for real-time alerts
- Remote monitoring in off-grid or low-maintenance installations
Compatibility:
- Compatible with LoRaWAN® gateways and network servers compliant with LoRaWAN® 1.0.2
- Integrates with IoT platforms such as The Things Network (TTN), ChirpStack, or private LoRaWAN® servers
- Supports standard LoRaWAN® device activation methods (OTAA and ABP)
5. Components & Accessories
Included Items:
- NV-R311CB main sensor unit
- Magnetic contact piece
- Pre-installed CR2450 battery
- Adhesive mounting pads
- Quick installation guide
Optional Accessories:
- Replacement CR2450 battery
- Screw mounting kit
- External magnet (for extended gap installations)
- Configuration cable (for factory setup or advanced diagnostics)
Connectors and Interfaces:
- Internal battery holder (no external power connector)
- Internal acoustic sensor element
- Magnetic reed switch interface
- LED indicator for status feedback
6. Installation & Setup
Requirements:
- LoRaWAN® gateway within communication range
- Network server credentials (AppEUI, DevEUI, AppKey for OTAA activation)
- Mounting surface (glass, wood, or metal frame)
Mounting Options:
- Adhesive Mounting: Use the provided double-sided adhesive pads for quick, non-invasive installation on smooth surfaces.
- Screw Mounting: For permanent installations, use screws through the designated mounting holes.
Installation Steps:
1. Identify the installation location ensuring the sensor and magnet align properly when the window or door is closed.
2. Clean the surface to ensure proper adhesion.
3. Mount the main sensor body on the fixed frame and the magnet on the movable part.
4. Ensure the gap between the sensor and magnet does not exceed the specified detection range (≤ 20 mm).
5. Power on the device (battery pre-installed) and initiate LoRaWAN® activation (OTAA or ABP).
6. Verify successful network join via LED indication or network server logs.
7. Test open/close and glass break detection to confirm proper operation.
Configuration:
- Device parameters such as reporting interval, detection sensitivity, and transmission power can be configured via LoRaWAN® downlink commands.
- Supports firmware updates over the air (FOTA) when enabled by the network server.
7. Performance & Capabilities
Transmission Range:
- Up to 10 km line-of-sight; typical urban range 1–3 km depending on building density and gateway placement.
Battery Performance:
- Typical battery life up to 5 years with default reporting intervals (one message per hour and event-based triggers).
- Battery life may vary based on environmental temperature, transmission frequency, and network conditions.
Detection Performance:
- Magnetic Contact: Reliable detection of open/close events with minimal false triggers.
- Glass Break Sensor: Acoustic detection optimized for standard window glass (2–6 mm thickness).
- Response Time: <1 second for event detection and transmission.
Data Transmission:
- Uplink messages include sensor state, battery voltage, and device status.
- Downlink messages allow configuration and control.
- Adaptive Data Rate (ADR) supported for optimized network performance.
Limitations:
- Designed for indoor use; not suitable for outdoor or high-humidity environments.
- Glass break detection performance may vary with ambient noise levels or non-standard glass types (laminated, double-glazed).
- Requires LoRaWAN® network coverage for operation.
8. Standards & Compliance
- LoRaWAN® Specification: Version 1.0.2 compliant
- Radio Compliance:
- EU: EN 300 220
- US: FCC Part 15 Subpart C
- AU/NZ: AS/NZS 4268
- KR: KC Certification
- IN: WPC Compliance
- Safety Standards: EN 60950-1 / IEC 62368-1 (for low-voltage devices)
- Environmental Compliance: RoHS 2011/65/EU, REACH Regulation (EC) No 1907/2006
- Quality Management: Manufactured under ISO 9001 certified processes
- EMC Compliance: EN 301 489-1, EN 301 489-3
These certifications ensure the NV-R311CB meets international standards for radio performance, safety, and environmental responsibility, making it suitable for global deployment in IoT networks.
9. Additional Information
Warranty:
- Standard manufacturer warranty: 12 months from date of purchase against defects in materials and workmanship.
Support:
- Technical documentation, configuration guides, and firmware updates available through the manufacturer’s support portal.
- Customer support via email and authorized distributors.
Maintenance:
- Periodic inspection recommended every 12–24 months to verify sensor alignment and battery condition.
- Battery replacement required when low-battery warning is reported via LoRaWAN® uplink.
- Clean sensor surface with a dry cloth; avoid solvents or water exposure.
Firmware & Updates:
- Supports over-the-air firmware updates (FOTA) via LoRaWAN® downlink.
- Configuration parameters can be updated remotely without physical access.
Lifecycle & Sustainability:
- Designed for long-term operation with minimal maintenance.
- Components selected for low environmental impact and recyclability.
Applications Summary:
The NV-R311CB LoRa 1.0.2 Asset Sensor is ideal for smart building security, remote asset monitoring, and IoT-based intrusion detection systems. Its combination of magnetic contact and acoustic glass break detection provides comprehensive coverage for windows and glass surfaces, while LoRaWAN® connectivity ensures reliable, long-range communication with minimal power consumption.
Summary Statement:
The Netvox NV-R311CB LoRa 1.0.2 Asset Sensor is a compact, dual-function wireless device that integrates magnetic contact and glass break detection into a single LoRaWAN®-enabled unit. Engineered for low power consumption, long-range communication, and flexible installation, it provides a robust solution for security and asset monitoring applications. With compliance to international radio and safety standards, multi-year battery life, and remote configuration capabilities, the NV-R311CB is a reliable component for modern IoT ecosystems requiring secure, efficient, and scalable sensing solutions.
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