Shanghai Keshi Technology Development Co., Ltd. specializes in fluorine gas analysis and is a leading domestic manufacturer of fluorine gas trace analysis; Derive three major categories of products around core technologies; SF6 testing equipment and environmentally friendly gas specific equipment for the high-voltage electrical industry; Air conditioning leak detection and filling equipment; Box type vacuum leak detection system; Passed ISO9001 new version certification; Multiple invention and utility model patents; Double soft certification enterprise, Shanghai high-tech enterprise, leading SF6 testing equipment manufacturer in China. SF6 LF series quantitative leak detectors, micro water meters, online monitoring systems, and recycling purification devices; Distribution, filling, separation and recovery of environmentally friendly gases; Moisture testing and treatment for inflatable cabinets, environmentally friendly insulated cabinets, etc; The main products of LF series SF6 quantitative leak detector include LF-301, LF-300, LF-200, LF-1D+, LF-1D, etc. The products are developed based on high-frequency magnetic field principle, using low-voltage and high-frequency ionization method. The products have no radiation source, are safe and reliable, durable, and the detector has no vulnerable parts. The daily maintenance cost is extremely low, and the sensitivity is 0.01ppm; The LF-301 adopts LCD touch screen human-machine dialogue control, displaying ppm (v) and 0.01ppm, with both AC and DC functions. The product has a 3-year warranty and is excellent, replacing imports. The patented technology promises to pass 100% testing by the China Institute of Metrology and the China Electric Power Research Institute; KST series intelligent micro water measuring instrument, high-precision intelligent dew point meter, with multiple specifications to meet diverse usage requirements; KS100, KS200 and other SF6 online comprehensive monitoring systems; Tested by the authoritative China Institute of Metrology, this turnkey project ensures no worries! KSLH series SF6 recovery and purification device, mixed gas filling equipment, and mixed gas separation and purification recovery device; KCCZ series SF6 vacuum filling device, portable vacuum filling device; Ultra low moisture dry air source; High precision multi concentration automatic gas distribution equipment, gas concentration dilution equipment; KS3000-CZ full automatic moisture removal system for gas filled cabinet (2019 new product) KS3000-YZ SF6 online moisture removal device (2019 new product) Well known customers include the Chinese Academy of Sciences, Northwest Nuclear Industry Research Institute, SGS Testing, East China Institute of Metrology, Experimental Verification Center of Power Grid Research Institute, CGN, Sinopec, PetroChina, etc; Long term supporting cooperative units: Pinggao Group, Xidian Group, Taikai High Voltage, Siyuan Co., Ltd., Zhengtai Group and other ultra-high voltage enterprises; Global brand clients: Schneider, Eaton Cooper, Hebao, Siemens ABB； More than 20 domestic listed company clients, such as Samsung Intelligent (AUX), Teruide, Daye Intelligent, Haixing Electric, Weisheng Electric, Changlan Electrician, Changlong Group, Tianjin Baili, Xuji Electric, Zhixin Electric, Huayi Electric, Shuangjie Electric, Xiangdian Corporation, Shenzhen Huicheng, Beijing Kerui, Beijing Hezong, Xiamen Zhongjun, Shenma Electric, Shenyang Lanying, Huanyu Group, Ankao Zhidian, etc. Hundreds of well-known domestic enterprises: Shanghai Leyan, Shanghai Langsong, Shanghai Tengyan, Zhejiang Wankong, Tianzheng Electric, Huanghua Group, Tian'an Group, Dasheng Microelectronics, Asia Power, Shenzhen Fuerte, Guoming Haochen, Nanyang Transmission and Distribution, Anpudikang, Andipu, Shanghai Electric Porcelain Factory, Hunan Tianwei, Nanping Desai, Xiamen Beisheng, Shanghai Leibosi, Jiangsu Daquan, China Energy Conservation Qiyuan Leiyu, Ningbo Naisen, Hongle Group, Ningbo Xinxin Xinyin, Kaihua Qiyi, Heilongjiang Ruikong, Nanjing Wopai, Henan Anda, Guodian Bona, Hunan Zhongshao, Shanghai Baogama, Jiangsu Dantong, Jiangsu Zhongmeng, Xi'an Xixi Wei, Tianjin Sanyuan, Dahua Electric, Toshiba Baiyun, Hebei DeYate, Mig Electric, Zhejiang Kaibo, Tianyi Tongyi, Hongda Electric, Ningbo Yaohua, Fenghuang Electric, Yangzhou Keyu Zhiyue Electric Power, Henan Lingzhi, Zhejiang Eroyi, Liaoning Weineng, Zhuoqi Electric, Tianjin Jintonghua, Jiangsu Hualin, Jiangxi Feichao, Xu Changchuxin, Shanghai Jingdao and other units that formulated the GB/T 11023-2018 "High Voltage Switching Equipment Sulfur Hexafluoride Gas Sealing Test Method" standard. Member of China Electrical Equipment Industry Association and China Fluorosilicon Organic Materials Industry Association. The main products of the "TOP1" air conditioning leak detectors in the industry are KS139 KS139T and others; Having a leading position in the industry, it is suitable for automotive air conditioning and central air conditioning due to its high sensitivity, fast response, and stable operation. From fuzzy leak detection to precision leak detection, subverting tradition, setting new standards for air conditioning leak detection, promoting environmental protection, energy conservation, and benefiting the country and the people; The product won the 2011 China Automotive Air Conditioning Top Ten Innovative Technology Achievement Award; 2011 China Automotive Maintenance "TOP20" Repair Tool Award; Designated supporting maintenance and testing tools for General Motors, Volkswagen, and others; China Red Flag "4S" store specifies the installation of air conditioning leak detection equipment; The complete set of leak detection devices for gas pipe fittings and container sealing, hydrogen medium leak detector, and vacuum box hydrogen leak detection system use 5% H2 as the detection medium for dry leak detection. After leak detection, the test piece does not need to be dried, and the leak detection accuracy is extremely high, reaching 5 × 10-12Pa.m3/s, R23： 0.1 grams per year; Human computer interaction interface, real-time monitoring and diagnosis; Automatic judgment, sound and light prompt output device, fully digital display of detection results; Stable and reliable, the system adopts high-end configuration to ensure reliable performance, and automatic fault detection; The production cycle and vacuum chamber are customized according to the size of the customer's workpiece; The product is applied to high-voltage switches, SF6 density relays, circuit breakers, air conditioning condensers, evaporators, heat exchangers, air conditioning piping, compressors, radiators, automotive oil coolers, automotive pipelines, transmissions, fuel tanks, engines, high-pressure valves, reservoirs, fire extinguishers, etc. Hydrogen vacuum box leak detection system, replacing helium detection, with basically the same process and equivalent leak detection standards;