Product

Weather station

Weather Sensors Shutter box sensor Wind Speed and Direction Rain And Snow Gauge Temperature And Humidity Handheld Weather Station Portable Weather Station Vehicle-Mount Weather Station Mechanical weather station Ultrasonic weather station Industrial Weather Station Forestry Weather Station School weather station Automated snow gauge Transmission Line Weather station Lightning Warning System Airport weather station Desert weather station Marine weather station lightning rod Night vision Meteorological shelter
Road Weather Station

Visibility detector Tunnel Detection Road condition sensor Light Transmittance Meter Roadside Weather Stations Radar speedometer Ice sensor Raindrop spectrometer Ground Penetrating Radar
Photovoltaic Inspection

Radiation Detector Photovoltaic weather station Ceilometer Total sky imager Solar radiation meter Solar Simulators Spectrometer Photovoltaic module dust Solar PV Test I-V Curve Tracer Power Quality Measurement Series power supply
Atmospheric monitoring

Negative Oxygen Ion Detector Air quality monitor Air quality monitoring station Dust detector Dust Monitor VOC monitor Flue gas analyzer dust concentration tester Dust sampler Odour Monitoring Flue gas monitoring Gas Sensors Gas detector

Contact us

Shandong Fengtu IOT Technology Co., Ltd

Sales Manager：Ms. Emily Wang

Cel,Whatsapp,Wechat:+86 15898932201

Email：info@fengtutec.com

Add：No. 155 Optoelectronic Industry Accelerator, Gaoxin District, Weifang, Shandong, China

location：Home>Products>Road Weather Station>Light Transmittance Meter>Tunnel visibility monitor

Tunnel visibility monitor

Model：FT-SGT1

Brand：fengtu

Tunnel visibility monitor measures the light transmission rate in the atmospheric optical channel to reflect the light transmission rate, so as to obtain tunnel visibility and smoke concentration.

Get a Free Quote

Related products

1.Tunnel visibility monitor product introduction

Tunnel visibility monitor measures the light transmission rate in the atmospheric optical channel to reflect the light transmission rate, so as to obtain tunnel visibility and smoke concentration.Tunnel visibility monitor does not require installation and debugging. It can be tested after powering on. The LCD screen displays the test data in real time. Considering the harsh natural environment in the tunnel, it is not convenient to connect to a laptop to store data. The instrument has its own internal memory, which can automatically save the test data. After the test is completed, the instrument is brought back to the laboratory and connected to the computer. The light transmittance display software can automatically import the data saved in the internal memory of the instrument into the computer and save it in EXCEL format for customers to review and use.

2. Main uses of tunnel visibility monitor

Atmospheric light transmittance under various atmospheric environments

Visibility values of highways under various atmospheric conditions

Acceptance test values for VI and CO values in tunnels

Temperature and humidity test values in the tunnel environment

3. Technical parameters of Tunnel visibility monitor

Test Range	Light transmittance (T)	0-100%
	Visibility (VI)	1-5000 m
	Smoke density (K)	0-35*10－31/m
	CO concentration (CO)	0-300 ppm
	Ambient temperature	-40℃－+80℃
	Ambient humidity	0-100%
Status display	128*64 dot matrix LCD screen, digital and character display
Test Principle	Light transmission method, digital probe, electrochemical probe
Test error:	±2% light transmittance (full scale)
Ambient temperature	-30～70 degrees Celsius
Ambient humidity	0～100%RH
Communication interface	RS232/RS485/USB
Supply voltage	AC 220V power adapter (with internal rechargeable lithium battery, can work continuously for more than 10 hours without external power supply)
Data storage	Can store 70 hours of continuous test data
Detection cycle	2s (can be customized according to customer requirements)
Storage cycle	10s (internal storage)
Machine weight	16KG (including instrument, instrument case, theodolite bracket)