"Control the standard by the details, show the power by quality". Our business has strived to establish a highly efficient and stable team staff and explored an effective good quality regulate course of action for Sht Humidity Sensor, Ch4 Gas Sensor , Stainless Steel Filter , Oxygen Microbubbles ,Portable Multi Gas Detector . All prices depend upon the quantity of your order; the more you order, the more economical the price is. We also offer good OEM service to many famous brands. The product will supply to all over the world, such as Europe, America, Australia,Tunisia , Chile ,Czech Republic , Israel .We strongly believe that technology and service is our base today and quality will create our reliable walls of future. Only we have better and better quality , could we achieve our customers and ourselves, too. Welcome customers all over the word to contact us for getting further business and reliable relationships. We are always here working for your demands whenever you need.