"Based on domestic market and expand overseas business" is our development strategy for Digital Hygrometer with Logging, Duct Humidity Sensor , Filter Plate , Humidity Sensor Module ,Combustible Gas Detector . We welcome buyers, business enterprise associations and good friends from all sections in the planet to get hold of us and request cooperation for mutual gains. The product will supply to all over the world, such as Europe, America, Australia,Puerto Rico , UK ,Czech , Plymouth .We set a strict quality control system. We have return and exchange policy, and you can exchange within 7 days after receive the wigs if it is in new station and we service repairing free for our products. Please feel free to contact us for further information and we will offer you competitive price list then.