Portable visibility testing instrument is a high-precision device designed based on optical principles. By emitting laser or infrared beams and measuring their scattering characteristics, it calculates the concentration of particulate matter in the atmosphere and visibility values in real time. Its core advantages are reflected in measurement accuracy, portability, environmental adaptability, and multi domain application value. It has a built-in high-sensitivity photoelectric sensor that can capture weak light signal changes, ensuring stable data output even in low visibility conditions such as thick fog and dust. The measurement range covers tens of meters to tens of kilometers, supports dynamic calibration function, and can automatically adjust parameters according to environmental changes to reduce measurement errors (accuracy is stable at& #177; five
Portable visibility testing instrumentIt is a high-precision device designed based on optical principles, which calculates the concentration and visibility of particulate matter in the atmosphere in real time by emitting laser or infrared beams and measuring their scattering characteristics. Its core advantages are reflected in measurement accuracy, portability, environmental adaptability, and multi domain application value. It has a built-in high-sensitivity photoelectric sensor that can capture weak light signal changes, ensuring stable data output even in low visibility conditions such as thick fog and dust. The measurement range covers tens of meters to tens of kilometers, supports dynamic calibration function, and can automatically adjust parameters according to environmental changes to reduce measurement errors (with accuracy stable within ± 5%).

1、 Product Introduction
BN10Portable visibility testing instrumentUsing forward scattering method to measure the total extinction coefficient of air and calculate the current visibility, it is widely used in emergency, road traffic, meteorological and other scenarios.
2、 Technical features
1. Integrated portable design, lightweight, easy to carry, and ready to use when turned on;
2. 10.1-inch high brightness touch screen, real-time display of data and historical curves;☆
3. Built in large capacity SD card (8GB), real-time data storage, support for querying and exporting;
4. Built in large capacity lithium battery, convenient for outdoor emergency use;
5. The instrument casing is made of high-quality aluminum material, and the whole machine has excellent waterproof, dustproof, and anti-collision performance;
6. Built in watchdog circuit ensures reliable and stable outdoor operation for extended periods of time;
7. The instrument communication and power interface both include lightning protection design, greatly reducing lightning strikes and static electricity damage;
8. 24V power supply, low power consumption, can provide long-term power supply;
9. The digital interface uses RS232 for active upload, without the need for protocol adaptation;
3、 Execution standards
QX/T 536-2020 Test Method for Forward Scattering Visibility Meter
4、 Technical parameters
| Main parameters |
parameter range |
resolution |
error |
| range |
BN10 |
10km☆ |
1m |
≤2km ±2%2km~10km ±5%>10km ±10% |
| BN20 |
20km☆ |
| repetitiveness |
≤4% |
| Operating Temperature |
-20~60℃ |
| Operating Humidity |
0~100%RH |
| Working power supply (adapter) |
100-240V input 24V output 2.5A |
| power consumption |
<10W |
| battery capacity |
6.6AH |
| working hours |
≥12h |
| size |
300x150x220mm (length x width x height) |
| weight |
≤10kg |