We have been commitment to supply the competitive price ,excellent products and solutions high-quality, at the same time as fast delivery for Breathable Humidity and Temperature Sensor Probe, Hydrogen Sulphide Sensor, Co2 Gas Sensor, Oxygen Sparger,Sintered Bronze Filter. 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,Lithuania, Holland,Hamburg, Italy.The best and original quality for spare parts is a most important factor for transportation. We may stick on supplying original and good quality parts even a little profit earned. God will bless us to do kindness business forever.