With advanced technologies and facilities, strict good quality manage, reasonable rate, superior assistance and close co-operation with shoppers, we have been devoted to supplying the very best price for our consumers for environmental sensors, Stainless Steel Filter Element , Temperature Humidity Probe , Methane Sensor ,Stainless Mesh Air 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,Sacramento , Belize ,Kuwait , Finland .Customer's satisfaction is always our quest, creating value for customers is always our duty, a long term mutual-beneficial business relationship is what we are doing for. We are an absolutely reliable partner for yourself in China. Of course, other services, like consulting, can be offered too.