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Guardian sensors
Guardian sensors are passive network monitoring devices that provide asset visibility, detect threats, and support secure deployments across operational (OT) and Internet of Things (IoT) environments.
Technical specifications
Specialized requirements
NS1R
The NS1R Guardian sensor is a compact, entry-level security solution ideal for small industrial or enterprise deployments. Supporting up to 500 nodes and 2,500 Internet of Things (IoT) devices, it offers effective protection with a space-saving DIN-mountable design.

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- Guardian sensors
  Guardian sensors are passive network monitoring devices that provide asset visibility, detect threats, and support secure deployments across operational (OT) and Internet of Things (IoT) environments.
  - Technical specifications
    - Large enterprise
    - Medium enterprise
    - Specialized requirements
      - NG-500R
        The NG-500R Guardian sensor is designed for mid-to-large-scale networks, offering a balance between high-performance security and scalability. With support for up to 80,000 network elements and 30,000 Internet of Things (IoT) devices, it provides robust protection with 800 Mbps throughput.
      - NS1R
        The NS1R Guardian sensor is a compact, entry-level security solution ideal for small industrial or enterprise deployments. Supporting up to 500 nodes and 2,500 Internet of Things (IoT) devices, it offers effective protection with a space-saving DIN-mountable design.
      - P550
        The P550 Guardian sensor is a desktop-mounted security device optimized for small-to-medium networks. With 2,500 protected nodes and 200 Mbps throughput, it is a reliable and compact cybersecurity solution.

NS1R

The NS1R Guardian sensor is a compact, entry-level security solution ideal for small industrial or enterprise deployments. Supporting up to 500 nodes and 2,500 Internet of Things (IoT) devices, it offers effective protection with a space-saving DIN-mountable design.

Table 1. NS1R
Maximum protected nodes	500
Maximum protected network elements	10,000
Maximum protected smart Internet of Things (IoT) devices	2,500
Maximum throughput	250 Mbps
Maximum Remote Collectors	10
Monitored ports	1x1000BASE-T + 2xSFP
Management ports	1x1000BASE-T
Expansion slots	Not available
Storage	64 gigabyte (GB) for operating system (OS) and data
Form factor	DIN mountable
Maximum power consumption	27 W
Power supply	9 - 36V CD Single AC/DC external power supply for 100/240VAC included (Dual power supply supported)
Temperature range	-40 - 158 ℉ / -40 - 70 ℃
Height x width x length	5.9 x 2.65 x 5.9 in / 149 x 67 x 128 mm
Weight	3.9 lb / 1.8 kg
Certifications	CE \| FCC \| UL