WEATHER SENSOR


FRT NIR51 Road condition sensor
Model Number : FRT NIR51
Overview
The NIR51 remote sensing road surface condition sensor avoids traffic interference caused by the installation of road weather stations. The principle of spectral measurement can accurately measure the amount of water, ice, and snow, as well as the smoothness of road surfaces. The NIR51 remote sensing road surface condition sensor can detect water and ice separately, creating a practical "wet slip" index that represents the friction ability of typical road surfaces and tires. On dry roads, the index is set close to 0.8, while on hard ice roads or roads with more snow, the index drops to 0.1. The rating of this index is based on measurements of actual friction under various road weather conditions.
Characteristic
- Maintenance-free system design, easy installation
- Standard communication protocol
- 9-30V wide power input range.
- Industrial-grade protective casing ensures long-term durability
- High stability, tailored for the field of transportation meteorology
Applications

Technical Parameters
General
Measurement parameter | Detection range | Resolution | Accuracy | Measurement principle |
water | 0.00~10mm | 0.01mm | 0.01mm | Remote sensing multispectral measurement |
ice | 0.00~10mm | |||
snow | 0.00~20mm | |||
Wet and slippery degree | 0.00~1 | 0.01 | 0.01 | |
temperature | -70~260℃ | 0.01℃ | 0.5℃ |
Size | Length: 145mm Width:342mm Height:245mm |
Weight | About 4.3kg |
Output interface | RS485 |
Measuring distance | 2m~15m |
Detecting diameter | 25.4cm |
Angle | 30~70 degrees, recommended 30 degrees |
Power supply | 9-30VDC( Optional solar and 220V power supply) |
Power consumption | <1.2W |
Operation temperature | -40℃~+80℃ |
Relative humidity at work | 0~100%Rh |
Length | Default 3.5m (extendable) |
Degrees of protection provided by enclosure | IP65 |
Suitable for | Asphalt pavement and concrete |
Agreement | Supports both ASCII protocol and Modbus RTU protocol |
FAQ
1. who are we?
We are based in Beijing, China, start from 2015,sell to Southeast Asia(18.00%),North America(14.00%),Southern Europe(10.00%),Mid East(10.00%),South America(9.00%),Central America(8.00%),Eastern Europe(8.00%),Western Europe(8.00%),South Asia(5.00%),Africa(3.00%),Eastern Asia(3.00%),Northern Europe(2.00%),Domestic Market(1.00%),Oceania(1.00%). There are total about 51-100 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Meteorological sensor,Gas sensor,Agrometeorological station,Optical rain sensor,Data logger
4. why should you buy from us not from other suppliers?
Fronttech (Beijing) Co., Ltd is with high degree of product integration, strong research and development capabilities, quick delivery time, Professional product testing system, and a sound quality and after-sales protection system.
5. what services can we provide?
Accepted Delivery Terms: EXW;
Accepted Payment Currency:null;
Accepted Payment Type: T/T,MoneyGram,Credit Card,PayPal;
Language Spoken:English,Chinese
Similar Products
FRT NIR51 Road condition sensor

Products
Parameter | Water | Ice | Snow | Wet and slippery degree | Temperature |
NIR51 | ✔ | ✔ | ✔ | ✔ | ✔ |
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