Our company is a high-tech enterprises which specialized in research and development, manufacturing, sales and service water quality analysis instruments, sensor and electrode.Our products are widely used in power plants, petrochemical industry, mining metallurgy, environmental water treatment, light industry and electronics, water works and drinking water distribution network, food and beverage, hospitals, hotels, aquaculture, new agricultural cultivation and biological fermentation process industries.We hold the value of "Scientific and technological innovation, win-win cooperation, honest cooperation and harmonious development" to promote our company going forward and accelerate the development of new products.The strictly quality assurance system to ensure product quality;Rapid response mechanism to meet customers needs. We provide long-term, convenient and fast maintenance services to thoroughly solve customers' worries. Our service has no end......Water quality is something we take very seriously at twinno. We know that your water analysis has to be right, which is why we're dedicated to providing you with the complete solutions you need to feel confident in your analysis. By developing reliable, easy-to-use solutions, as well as providing you with access to knowledgeable expertise and support, twinno is helping ensure water quality all across the globe.Good quality, best price, excellent after sales service and technical backup, as well as good communication with our customer, making us the partner of many overseas customer. We are hoping to build long term business relationship with you! ! !If any problems no matter during or beyond this period, please contact me feel freely. That's our duty to provide you with best service and technical support at any time. In addition, we supply 1 year warranty and lifelong free technical guiding and training.