What are the payment methods?

The common payment methods are as follows: A certain percentage of the payment is made upon signing the contract, and the full amount is paid before the goods are dispatched.

Are product demonstrations or prototype tests provided?

We strongly recommend that you visit our showroom or conduct on-site inspections of installed cases. For key clients and projects, we can negotiate and arrange for prototypes to be brought to your site for a short-term test to ensure that the equipment fully meets your actual operational requirements.

Flame lonization Detector, VOCs Detector, Exhaust Gas Analyzer Manufacturer & Supplier - Qingdao Laoying Haina Opto-electronic Environmental Protection Group Co., Ltd.

Advantageous R&D

Lonying uses self-developed optical spectroscopy and intelligent algorithms to tackle core technologies. It participates in many national standards and projects, promoting intelligent and precise environmental monitoring.
Vertical Manufacturing

It realizes full industrial chain self-control. Intelligent digital manufacturing ensures stable quality, cost efficiency and flexible customized production.
Quality Foundation

With military-grade standards and full-process quality control, its products run stably in harsh environments and exceed industry certifications.
Global Services

It builds a global service network with localized response and intelligent O&M, providing customers with full lifecycle services.

Who We Are

Qingdao Laoying Haina Opto-electronic Environmental Protection Group Co., Ltd.

Our Company is an integrated environmental monitoring service provider covering multiple industries such as environmental monitoring equipment, optical sensing, and intelligent data. Over the years, Lonying has made in-depth investments in the environmental monitoring field and has now established a complete industrial chain from core components, terminal equipment, scene applications, cloud-based supervision to comprehensive services.

Top Selling Products

Lonying uses self-developed optical spectroscopy and intelligent algorithms to tackle core technologies. It participates in many national standards and projects, promoting intelligent and precise environmental monitoring.

Fixed Source Emission Monitor

Ambient Air Quality Monitor

VOCs Monitor&Mobile Source

Water Quality Monitor

Main Products

Our Company is one of the leading manufacturers of environmental and industrial analysis instruments.With strong R&D capacity, we have developed various portable

flue gas sampler & analyzers, portable dust samplers&analyzers,and ambient air quality monitors.

Fixed Source Emission Monitor

View All Products

Qingdao Lonying Haina

The LONYING Advantage:

Built to Last, Backed by Expertise

The company covers an area of over 100,000 square meters

The company was

established in 1988

It has a professional team of nearly

300 people

A registered capital of

33 million yuan

Application Scenarios

Paper Mill

For the chlorine-containing waste gas from the alkali recovery furnace and the bleaching process, anti-chlorine corrosion heating pipelines were adopted. TRS (odor-causing sulfides) and AOX (adsorbed organic halides) were given priority for monitoring. Special pH? sensors were equipped to meet the monitoring requirements for characteristic pollutants in the paper industry.

Paper Mill
Metallurgical Plant

For high-temperature sources such as electric arc furnaces and refining furnaces, water-cooled sampling probes and metal filters are configured. It can monitor corrosive gases such as fluorides and chlorides, adapting to the transient emission characteristics of the metallurgical industry, and providing real-time data support for special metallurgical pollution control.

Metallurgical Plant
Rubber Factory

For the sulfur and benzene-containing waste gas generated during the compounding and vulcanization processes, an anti-hydrogen sulfide corrosion pretreatment system has been configured. MEMS sensors are used to monitor low-concentration VOCs, and an oil-free design ensures long-term stable operation in the high-oil-environment of the rubber industry.

Rubber Factory
Cement Plant

For the high dust and high alkali metal exhaust gases at the kiln head and kiln tail, a high-temperature extraction monitoring system is adopted. A self-cleaning ceramic filter is configured to effectively solve the problem of exhaust gas adhesion from the cement kiln, and accurately monitor NOx, NH? emissions, and PM2.5/PM10 classification data, contributing to the certification for ultra-low emissions.

Cement Plant
Petroleum Refinery

For the process exhaust gases from catalytic cracking and reforming units, a non-explosive FTIR multi-component analysis system is adopted. It can simultaneously monitor over a hundred types of VOCs components and characteristic sulfides. An inert sample transfer pipeline is equipped to meet the precise monitoring requirements of the petrochemical industry for complex organic substances.

Petroleum Refinery
Thermal Power Plant

In response to the diverse fuel characteristics of circulating fluidized bed boilers and biomass boilers, multiple parameter monitoring modules are configured. The laser scattering method is used for dust measurement and the chemical luminescence method is used for NOx measurement, which can adapt to high moisture and high alkali metal gas environments, providing a solution for the coordinated control of pollutants in the thermal power industry.

Thermal Power Plant
Glass Factory

In response to the high-temperature flue gas characteristics of the glass melting kiln, we adopted high-temperature pre-treatment technology to precisely monitor the emissions of SO?, NOx and particulate matter. The anti-crystallization sampling system can cope with the high-fluorine corrosive environment, ensuring continuous and reliable data under the 1400℃ condition, and helping the glass industry achieve ultra-low emission transformation.

Glass Factory
Power Plant

Designed specifically for coal-fired/gas-fired power plants, it adopts ultraviolet differential absorption technology to accurately monitor the pollutant concentrations before and after desulfurization and denitrification. The system is equipped with automatic back-blowing and temperature compensation functions, which can adapt to high-humidity and high-dust environments and meet the requirements for continuous monitoring of ultra-low emissions. The data can be directly connected to the environmental protection platform.

Power Plant
Steel Plant

For complex processes such as sintering, coking, and converter operations, multiple-level filtration and thermal-humid pre-treatment systems are configured. It can simultaneously monitor characteristic pollutants such as heavy metal dust and dioxin precursors. The explosion-proof design is suitable for gas areas, providing precise data support for ultra-low emissions in the steel industry.

Steel Plant
Mining

For the ventilation in mines, as well as the processes of mineral processing and roasting, explosion-proof portable monitoring equipment is adopted. Key monitoring focuses on blasting dust, heavy metal evaporation gases and VOCs. Special protective enclosures for mines are equipped to adapt to high dust and high vibration conditions, ensuring the monitoring needs for green mining in mines.

Mining
Asphalt Plant

In response to the strong adhesion of asphalt gas, the presence of benzene compounds and asphalt smoke, the technology of high-temperature heating sampling and FID detection was adopted. The anti-adhesion probe design effectively solved the interference caused by asphalt fog, accurately monitoring VOCs and characteristic pollutants, providing data basis for smoke gas treatment.

Asphalt Plant
Lead Smelting Plant

Designed specifically for the characteristics of heavy metal vapor in the lead smelting flue gas, it is equipped with special alloy sampling probes and a heavy metal condensation and collection system. It can accurately monitor characteristic pollutants such as lead dust, arsenic, and cadmium, with a protection level of IP65, meeting the special monitoring requirements of the non-ferrous smelting industry.

Lead Smelting Plant

All Applications

Qingdao Laoying Haina

DIGITAL SHOWROOM

If you want to learn more about our manufacturing capabilities, you can click on the avatar in the scene, or accept my invitation!

Qingdao Laoying Haina

Partners & Certifications

The company has a professional team of nearly 300 people, with a registered capital of 33 million yuan. It has obtained 67 software copyrights and 201 patents.

We provide technical support to environmental monitoring departments at all levels across the country, establish long-term cooperation with key industrial enterprises, and our products are sold far to the markets of Europe, Asia and Africa. We have also established a stable global service network.

Industry Insights & Product Knowledge

IE Expo·Shanghai

Dear Partners,We are pleased to inform you that the 27th China IE Expo will be held from April 13 to 15, 2026 at the Shanghai New International Expo Centre.

13/2026-04

Qingdao Laoying Haina Holds The 1st Maintenance Skill Competition in 2026

On February 26, 2026, Qingdao Lonying Haina held the 2026 Maintenance Skill Competition to improve the professional and practical abilities of its after-sales team. Under the theme of “promoting learning through competition and application through practice”, the event combined theory and practice to

26/2026-02

Lonying Showcases Environmental Monitoring Solutions at International Environmental Exhibition

Lonying attended the grand international environmental technology exhibition held from January 26 to 28. As a professional provider of high-quality environmental monitoring instruments, we displayed our reliable solutions for flue gas, exhaust, particulate matter and water quality monitoring.As a ke

28/2026-01

Get A Quote

We actively participate in the implementation of the "carbon neutrality" strategy, contributing technical strength to protect green mountains and clear waters, and are a trustworthy environmental protection technology partner.

Click Here To Contact Us

Q What are the payment methods?

A The common payment methods are as follows: A certain percentage of the payment is made upon signing the contract, and the full amount is paid before the goods are dispatched.
Q Are product demonstrations or prototype tests provided?

A We strongly recommend that you visit our showroom or conduct on-site inspections of installed cases. For key clients and projects, we can negotiate and arrange for prototypes to be brought to your site for a short-term test to ensure that the equipment fully meets your actual operational requirements.

Who We Are

Fixed Source Emission Monitor

Qingdao Lonying Haina

Qingdao Laoying Haina

Qingdao Laoying Haina

IE Expo·Shanghai

Qingdao Laoying Haina Holds The 1st Maintenance Skill Competition in 2026

Lonying Showcases Environmental Monitoring Solutions at International Environmental Exhibition

Get A Quote

Q What are the payment methods?

Q Are product demonstrations or prototype tests provided?

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