NJD-2 Visibility Sensor

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NJD-2 Visibility Sensor

Payment:

T/T, L/C or Paypal

OEM/ODM:

Available

MOQ:

1PCS

Model:

NJD-2

Lead Time:

5-7 days

PRODUCT DESCRIPTION

The NJD-2 Visibility Sensor is designed for measuring atmospheric visibility parameters. Based on the aerosol forward-scattering principle, it represents a new generation of meteorological visibility monitoring equipment developed from traditional transmissometer technology.

This sensor is widely used in applications such as traffic safety, meteorology, environmental protection, and marine monitoring, especially for haze and fog detection.

The NJD-2 is equipped with an optical transmitter and a scattered light receiver, along with a high-speed digital signal processing (DSP) unit and built-in self-diagnostic function. It offers three measurement ranges:

  • A: 0 m – 10 km
  • B: 0 m – 30 km
  • C: 0 m – 80 km

The device complies with the industry standard “Road Traffic Meteorological Environment Visibility Detector” (JT/T 714-2008) and is widely applied in monitoring low-visibility conditions on highways.

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Working Principle

The NJD-2 Visibility Sensor utilizes advanced forward scattering technology to accurately measure atmospheric visibility. By detecting the extinction coefficient and applying the Koschmieder algorithm, it delivers precise and reliable MOR (Meteorological Optical Range) values in real time.

Equipped with a stable infrared light source and a high-sensitivity receiver, the sensor ensures consistent performance under both day and night conditions. Its intelligent signal processing system enables fast response, high accuracy, and wide measurement range.

Designed for versatility, the NJD-2 can be deployed in both fixed installations and mobile platforms, making it ideal for applications in highways, maritime navigation, and environmental monitoring.

With a robust structure, low power consumption, and minimal maintenance requirements, the NJD-2 provides a dependable solution for continuous visibility monitoring in harsh environments.

njd-2

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Compact All-in-One Design
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Low Power Consumption & High Reliability
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Lightning Protection Design
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IP66 Rugged Housing
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Advanced Anti-Contamination Design
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Anti-Condensation Heating System

SPECIFICATIONS

Power Supply

DC 12V

Measurement Range

Default: 0–10,000 m; Optional: 0–50,000 m or 0–80,000 m

Accuracy

±2% (≤1000 m); ±10% (>1000 m)

Resolution

0.1 m

Output Interval

60 s

Interface

RS485 / RS232 (or 4–20 mA); Modbus protocol

Light Source Wavelength

940 nm

Forward Scattering Angle

33°

Reliability

MTBF ≥ 20,000 hours

Data Update Rate

1/min

Dimensions

700 × 350 × 200 mm

Power Consumption

≤ 10 W

Weight

≤ 5 kg