Product Details
The KGD - WQ - 515 Vehicle Emission Gas Analyzer is used to monitor
the exhaust gas emitted by vehicles.
Product Introduction
KGD-WQ-515 Vehicle Emission Gas Analyzer is used to monitor vehicle
exhaust emissions. It employs non-dispersive infrared (NDIR) gas
analysis technology and ECD long-life electrochemical sensing
technology with independent intellectual property rights to measure
the volume concentrations of CO, HC, CO₂, O₂, and NO in vehicle
exhaust gases, and automatically calculates and displays the
air-fuel ratio.
Product Features
- Portable design with a compact size
- Easy to operate, offering accurate and reliable measurements
- Multi-stage filtration system design for enhanced system durability
- Equipped with interfaces for oil temperature and rotational speed
Technical Parameters
Gas Type | Measuring Range | Relative Error | Absolute Error |
HC | (0 - 5000)×10⁻⁶, (5001 - 9999)×10⁻⁶ | ± 5%, ± 10% | ± 10×10⁻⁶ |
CO | (0.00 - 10.00)×10⁻², (10.01 - 14.00)×10⁻² | ± 5%, ± 10% | ± 0.03×10⁻² |
CO₂ | (0 - 18.0)×10⁻² | ± 5% | ± 0.5×10⁻² |
NO | (0 - 4000)×10⁻⁶, (4001 - 5000)×10⁻⁶ | ± 4%, ± 8% | ± 25×10⁻⁶ |
O₂ | (0 - 25.0)×10⁻² | ± 5% | ± 0.1×10⁻² |
Note | The absolute error and relative error listed in the table, meeting
one of the requirements is sufficient. |
Communication | RS - 485/RS - 232, can be connected to Gasboard series smoke
analysis equipment |
Power Supply | 100 - 240VAC, 80W |
Display | LCD display |
Company Profile
Xi'an Kacise Optronics Co.,Ltd. is a professional manufacturer of
measuring instruments , located in China xi’an City. Since 2008,
Xi'an Kacise focused on the development and production of pressure,
level and flow measuring instruments .

We have been specializing in manufacturing pressure, level and flow measuring instruments and related products for 10 years. Based on experienced technical
and management personnel, through efforts of our entire staff, we
have become a professional measuring instrument manufacturer and
solution provider. And we are continuously trying to improve
product quality.

Xi'an Kacise is qualified with ISO 9001-2008, GJB 9001B-2009, CE,
intrinsic safety explosion-proof and isolated safety
explosion-proof certificates, etc. which ensure that our products
comply with international standards.

Kacise sensors have already been exported to America, Spain,
Australia, Chile and 20 other countries and regions, and received
many favorable feedbacks. Our overseas distributers are also
increasing. We regard “reasonable prices, efficient production time
and good after-sales service” as our tenet, and hope to cooperate
with more customers for mutual development.

Our goal is simple: to sell the best products at the best prices,
and provides industry-leading customer service. We personally get
to know each of our customers, and we know how to discover the most
valuable part of our business , to help others achieve their goals.