Chongqing Zhaoyi Science & Technology Development Co.Ltd is a hi-tech joint-stock company which manufactures Ultrasonic Sensors, Ultrasonic Level instruments (Ultrasonic Liquid Level Meter, Ultrasonic Level Meter, Wireless Ultrasonic Level Gauge, Ultrasonic Fathometer), that possess Instrument Technology Institute, Sensor factory, instrument manufactory engaged in research, development, manufacturer and marketing. Our products have been issued production licenses and explosion-proof certification. Ultrasonic Liquid Density Sensor has been applied for a patent, and supported by National Science & Technology Innovation Fund. RISEN ultrasonic series have been widely used for military, pubic security, petroleum. Chemical, steel, mining, breweries, power plants, water plants, pharmaceuticals, environmental production, food, beverages, edible oil, dairy products and other industries. With its advanced technology, high reliability and high quality service, our products promptly apply in oil fields, colleges, environmental protection, metallurgy, chemical pharmaceutical etc. We have established a good business relationship with Australia, Malaysia, Middle East, South Africa, etc. With the business purposes of â??Honest and Quality to develop new markets, technological innovation and developmentâ??, we will be willing to cooperate sincerely with old anï½?ã??new customers, make brilliant achievements.