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.
By integrating seamlessly with tunnel ventilation systems, lighting control, and traffic management platforms, HY-VIE helps reduce accident risk, optimize energy consumption, and meet tunnel safety compliance requirements.
Product Features
Introduction
The HY-VIE is designed to collect real-time monitoring data of visibility and carbon monoxide in-situ, and pass those information to traffic supervision departments, so as to provide decision-making basis for tunnel ventilation and road safety.It communicates with the tunnel’s operating system to engage its jet fans if visibility within tunnel is too low.
Technical Specifications
| Model | HY-VIE | |||
| Signal Output | RS485 and 4-20mA | |||
| Power Supply | 12-24VDC or 100~240VAC 50/60Hz | |||
| Data Output | 1 data per second | |||
| Communication Protocol | MODBUS-RTU | |||
| Operating Temperature | -40℃ - +70℃ | |||
| Operating Humidity | 0 - 100% | |||
| Principle | Range | Accuracy | Resolution | |
| Visibility | LED Transmitivity
|
0~35×10-3 m-1 | ±0.002 m-1 | 0.001m-1 |
| CO(optional) | Electrochemical | 0~300ppm | ±1 ppm or 2% span | 1 ppm |
| NO(optional) | Electrochemical | 0~30ppm | ±1 ppm or 2% span | 1 ppm |
| NO2(optional) | Electrochemical | 0~10ppm | ±1 ppm or 2% span | 1 ppm |
Note: All parameters needed should be decided when you place the order. Final price depend on
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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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