Our company has been focusing on brand strategy. Customers' satisfaction is our best advertising. We also supply OEM service for waterproof digital sensor, Filter Plate , Hydrogen Sulfide Gas Sensor , Co2 Module ,Nitrogen Gas Sensor . Excellent quality, competitive prices, prompt delivery and dependable service are guaranteed Kindly let us know your quantity requirement under each size category so that we can inform you accordingly. The product will supply to all over the world, such as Europe, America, Australia,Bulgaria , Lyon ,Morocco , Argentina .With the highest standards of product quality and service, our products have been exported to more than 25 countries like the USA, CANADA, GERMANY, FRANCE, UAE, Malaysia and so on.We are very pleased to serve customers from all over the world!