Our development depends on the advanced equipment ,excellent talents and continuously strengthened technology forces for portable straw tester, H2s Gas Sensor , Chemical Co2 Sensors , Gas Sensor Housing ,Temperature Humidity Probe . We welcome new and previous buyers from all walks of life to make contact with us for upcoming organization associations and mutual good results! The product will supply to all over the world, such as Europe, America, Australia,Croatia , Maldives ,Boston , New Orleans .More than 26 years, Professional companies from all over the world take us as their long-term and stable partners. We are keeping durable business relationship with more than 200 wholesalers in Japan, Korea, USA, UK, Germany, Canada, France, Italian, Poland, South Africa, Ghana, Nigeria etc.