In an effort to provide you advantage and enlarge our business enterprise, we even have inspectors in QC Staff and assure you our greatest provider and item for dew point instrument, Precision Humidity Sensor , Relative Humidity Probe , Gas Sensor ,Inline Carbonation . Striving hard to attain continual success based on quality, reliability, integrity, and complete understanding of market dynamics. The product will supply to all over the world, such as Europe, America, Australia,Costa Rica , Netherlands ,South Africa , New Delhi .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.