On April 20-22, 2021, the largest environmental protection industry exhibition in Asia&# 39& Flash; The 22nd China Environmental Expo was grandly held at the Shanghai New International Expo Center. This exhibition covers an area of 180000 square meters, bringing together over 2000 well-known domestic and foreign environmental protection enterprises to participate, showcasing and exchanging cutting-edge trends and advanced technologies in the global environmental protection industry in a one-stop manner.

Qingdao Langke Electronic Technology Co., Ltd. (hereinafter referred to as "the company"), as a technical enterprise specializing in the research and development, design, and production of instruments and meters, made a brilliant appearance at this exhibition. At present, the company's main business products are dedicated online detectors and control instruments for ozone systems and environmental engineering, widely used in professional fields such as municipal water, industrial wastewater, chemical industry, food and beverage processing water, space disinfection, swimming pool disinfection, and waste gas treatment. The exhibition's ozone concentration detector LT-200B, portable ozone concentration detector LT-200D/LT-200P, ozone leakage alarm LT-05MS 0-5PPM, handheld ozone concentration detector LT-20PH-C 0-20PPM, space gas detection sensor LT-05A-1 0-5PPM and other equipment have attracted many guests and colleagues from both domestic and foreign countries to exchange ideas. Many of the products are highly favored by users and have reached preliminary cooperation intentions.

The exciting appearance at this year's Environmental Expo further enhanced the company's visibility, expanded the scope of brand influence, and laid the foundation for continued market development in the future. In the future, the company will not change its craftsmanship, continue to focus on product innovation and quality, provide customers with more and higher quality products and more comprehensive after-sales service, and contribute to the sustainable development of the industry.