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Tunnel Environment Sensors

Tunnel environment sensors are specialized traffic environment sensors to monitor air quality and safety‑related parameters inside highway and urban tunnels. This tunnel environment sensors system detects smoke concentration, visibility, CO gas content, wind speed inside tunnel tube 24 hours per day. Real‑time measured data guides tunnel ventilation fan adjustment and fire‑hazard early warning. The hardware withstands long‑term vehicle exhaust corrosion and weak‑light tunnel operating environment. Standard digital interface connects seamlessly with tunnel supervisory control system. Modular design supports flexible combination for different tunnel scale. Our tunnel environment sensors guarantee safe and stable operation for various road tunnel infrastructure projects.

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HY-WTE Tunnel Ultrasonic Wind Sensor, High Precision Ultrasonic Anemometer Measuring Wind Speed and Direction for Highway, Railway and Subway Tunnel Ventilation System

HY-WTE crossed type tunnel ultrasonic wind speed and wind direction detector is specifically designed for for the tunnel application, it’s working based on ultrasonic time-difference method, the two ultrasonic probes were installed on both sides of the tunnel wall and face to each other, when tunnel airflow passes between the two ultrasonic probes, the time difference between the round-trip times of the ultrasonic waves transmitted by each other is changed by airflow. By measuring the time difference, the airflow velocity is obtained.

HY-WDS21E Tunnel Wind Speed Sensor, High Precision Tunnel Anemometer for Real-time Air Velocity Monitoring in Highway, Railway Tunnel Ventilation System

HY-WDS21E Ultrasonic Anemometer uses highly stable ultrasonic probes to simultaneously measure wind speed and direction based on principle of TOF(time of flight) of ultrasonic sound wave. It’s specially designed for the tunnel application, it’s installed on the tunnel wall and providing real-time tunnel wind data to total control room, as a basic basis for ventilation and operation.

HY-VIE Tunnel Visibility Sensor Transmissometer with CO NO NO2 for Highway Road Tunnel Ventilation Monitoring

HY-VIE Tunnel Visibility Sensor is a professional-grade atmospheric visibility monitoring instrument, purpose-built for road, highway, railway, and mining tunnel environments. It continuously measures visibility distance in real time, giving operators the critical data needed to detect fog, haze, dust, and exhaust-induced air pollution inside tunnels — where visibility can change within seconds and directly threaten driving safety.

HY-LXP21E Tunnel Entrance Luminance Sensor, Brightness Photometer for Highway Tunnel Lighting Control

HY-LXP21E measures the level of illuminance within the tunnel and report it to lighting control center, so that lighting strength within the tunnel can be precisely adjusted to ensure illuminance within tunnel is close to luminance of entrance and exit of tunnel.
Designed specifically for the tunnel environment, the HY-LXP21E continuously measures cosine corrected planar illuminance within the tunnel thus allowing elimination of directional error.

HY-CDP22E Tunnel Entrance Luminance Sensor, Brightness Meter for Highway Tunnel Lighting Monitoring

HY-CDP22E tunnel entrance & exit luminance sensor measures the level of luminance, also called as brightness, created by natural light at the tunnel entrance / exit to ensure that the visual perception of drivers will be maintained, both day and night, by avoiding sudden variations in lighting levels and potential "black hole effect" when entering and exiting a tunnel.

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stefan@hongyuv.com

Hongyuv Technology specializes in the R&D and manufacture of meteorological and traffic monitoring sensors, with a complete in-house independent development and production system established.

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Products

Ultrasonic Anemometer

All-in-one Weather Station

Rain Gauge

Portable Weather Station

Visibility Sensor

Road Surface State Detector

Tunnel Environment Detector

Contact with us

Contact person: Stefan

Tel: 15390030365

E-mail: stefan@hongyuv.com

WhatsApp: 8615390030365

Address: Block 1st, Xinye Road 4th, Gaoxin Zone, Pidu Zone, Chengdu City, Sichuan Province, China