Tunnel illuminance sensor supplier

We offer high-precision tunnel illuminance sensor solutions that are widely used in intelligent transportation and tunnel lighting control systems. Based on the principle of illuminance measurement and incorporating photodiode photoelectric conversion technology, our products enable stable and accurate ambient light monitoring. In the following sections, we will provide a comprehensive overview of the product’s structure, key features, and typical applications to help you gain a deeper understanding of the performance advantages and practical value of our tunnel illuminance sensors.

  • Range: 1500-25000K
  • Ambient temperature: -40~65℃
  • Output: 1 4-20mA, 1 RS485, 1 relay alarm output
  • Supply: 220V±15%VAC, 50HZ
  • Total Weight: 2.5kg

Giới thiệu

A illuminance sensor is a precision device designed to measure Illuminance in and around tunnels, enabling automatic lighting control for safer driving and energy efficiency. It works by using a Photodiode to convert light into electrical signals, which are processed to match human eye sensitivity. Widely applied in highway and railway tunnels, urban underpasses, and intelligent traffic systems, it provides stable, real-time data for smart lighting and safety management.

Structure tunnel illuminance sensor

  • Optical Sensing Unit
    Responsible for receiving ambient light; typically equipped with filters to comply with illuminance measurement standards.
  • Photodiode
    The core light-sensitive component that converts light signals into electrical signals.
  • Signal Processing Circuit
    Amplifies, filters, and temperature-compensates the raw electrical signal to ensure data stability and accuracy.
  • Data Output Module
    Provides standard communication interfaces (such as RS485) to facilitate system integration.
  • Protective Housing
    Designed using high-strength, corrosion-resistant materials, featuring waterproof and dustproof capabilities (e.g., IP66).
  • Mounting Bracket and Adjustment Mechanism
    Supports flexible installation and angle adjustment to accommodate various tunnel entrances or internal environments.
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Chi tiết hiển thị

To meet the lighting control requirements of smart tunnels, the tunnel illuminance sensor is composed of multiple high-performance components that can continuously provide reliable illuminance data even in high-humidity and high-dust environments.

Thông số kỹ thuật

This illuminance sensor features a wide measurement range and excellent environmental adaptability. It supports multiple signal output formats, facilitating system integration and remote monitoring. Designed with a high protection rating, the device operates reliably in complex environments ranging from -40°C to 65°C. With its compact design and easy installation, it meets the high-reliability and high-precision requirements of tunnel lighting control and intelligent transportation systems.

Tham số

Mặt hàngThông số kỹ thuậtMặt hàngThông số kỹ thuật
LoạiotherAccuracy ClassStandard Accuracy
Voltage240 VProtection ClassIP66
Warranty1 YearCustomized SupportOEM, ODM, OBM
PowerotherĐộ chính xác3%
Tên thương hiệuYantaiPlace of OriginHebei, China
Phạm vi1500-25000KMeasuring AnglesVertical ≥20°; Horizontal ≥20°
Độ chính xác3%Nhiệt độ môi trường-40-65°C
Ambient Humidity0-100 %RH (non-condensing)Đầu ra14-20mA, 1 RS485
Cung ứng220V±15%VAC 50HZMức độ bảo vệIP66
Total Weight2.5kgDimensions251 x 190.5 x 94mm

Features tunnel illuminance sensor

Applications illuminance sensor

Tunnel illuminance sensors are widely used in various tunnels and intelligent transportation systems. They are primarily used to monitor ambient light levels in real time, enabling automatic adjustment of tunnel lighting to enhance traffic safety and improve energy efficiency.

illuminance-sensor

Automatically adjust lighting at entrances and inside the tunnel to ensure driving safety.

Railway Tunnels

Monitors lighting conditions to optimize the visual environment for trains passing through tunnels.

illuminance-sensor

Urban Underpasses

Intelligently controls lighting systems to improve visibility for pedestrians and vehicles.

illuminance-sensor

Integrates with traffic management platforms to optimize energy consumption and enable safety monitoring.

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Bridges and Culverts

Provides auxiliary lighting control to adapt to day-night cycles and weather changes.

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Delivers precise lighting data for traffic and lighting research and analysis.

custom illuminance sensor

To meet the specific requirements of various tunnels and intelligent transportation systems, the illuminance sensor offers flexible customization options, including measurement range, output interface, power supply method, protection rating, and mounting method.

Tùy chọn tùy chỉnh

  • Measurement Range: The appropriate illuminance measurement range can be selected based on the tunnel’s lighting conditions, supporting precise monitoring in both high-brightness and low-light environments.
  • Output Interfaces: Multiple signal output options are available (e.g., 4–20 mA, RS485, relay alarms) to facilitate integration with various control systems.
  • Power Supply Options: Supports multiple power supply modes, including 220 V AC and 24 V DC, to meet the diverse power requirements of tunnel environments.
  • Đánh giá mức độ bảo vệ: The housing offers protection ratings up to IP65/IP66/IP67; select the appropriate dust and water resistance level based on the installation environment.
  • Mounting Options: Multiple mounting options are available, including brackets, suspended mounting, or wall mounting, ensuring convenient deployment in various tunnel structures.
  • Functionality Expansion: Additional features such as temperature and humidity monitoring, remote data transmission, and alarm linkage can be added to enhance the system’s intelligence.
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Illuminance Sensor Nhà sản xuất và Nhà cung cấp

Yantai Sensor is a professional illuminance sensor manufacturer and supplier, specializing in high-precision tunnel light monitoring sensor solutions for intelligent transportation systems, highway tunnels, and urban underground passages. Our sensors are designed to accurately measure environmental light levels, providing stable and reliable data for tunnel lighting control and energy-efficient illumination management.

With strong independent R&D capabilities, advanced manufacturing facilities, and a dedicated environmental testing laboratory, each sensor undergoes strict quality checks, including temperature, humidity, vibration, and long-term performance tests. Certified with CE, ISO, and RoHS, we offer reliable products along with flexible OEM/ODM services to support global tunnel lighting and smart traffic monitoring projects.

Chứng chỉ

We have CNAS, ISO, CE, and RoHS certifications, and all weather monitoring systems meet rigorous international standards.

Câu hỏi thường gặp

What is an illuminance sensor?

An illuminance sensor is a high-precision sensor used to measure ambient light intensity. It provides real-time light data for applications such as tunnel lighting, intelligent transportation systems, and building lighting control.

What is the difference between a tunnel light monitoring sensor and a standard light sensor?

The tunnel light monitoring sensor is specifically designed for tunnel environments. It features a wide temperature range, dust resistance, waterproof protection, and fast response capabilities, making it suitable for detecting changes in light levels at tunnel entrances and inside tunnels.

How does a tunnel illuminance sensor work?

A tunnel illuminance sensor uses a photodiode or photosensitive element to convert light into electrical signals. The signals are processed to match human eye perception (lux), enabling automatic tunnel lighting control.

Why install a tunnel light monitoring sensor?

Installing a tunnel light monitoring sensor ensures real-time light measurement, improves driving safety, reduces energy costs, and helps comply with smart tunnel and intelligent traffic system standards.

What’s the difference between an illuminance sensor and a luminance sensor?

While an illuminance sensor measures the total light falling on a surface (lux), a luminance sensor measures the brightness of the light emitted from a surface (cd/m²), often used for display brightness control.

How to choose the right illuminance sensor?

Consider measurement range, output type, protection level, installation flexibility, and compatibility with your tunnel lighting system to select the optimal sensor.