Our corporation insists all along the quality policy of "product top quality is base of organization survival; purchaser pleasure will be the staring point and ending of an company; persistent improvement is eternal pursuit of staff" plus the consistent purpose of "reputation very first, purchaser first" for handheld humidity meter, Dew Point Instrument , Gas Sensor Module , Oxygen Stone ,Humidity Transmitter 4 20ma . We have expanded our business into Germany, Turkey, Canada, U. S. A. , Indonesia, India, Nigeria, Brazil and some other regions of the world. We are working hard to be one of the best global suppliers. The product will supply to all over the world, such as Europe, America, Australia,Ghana , Amsterdam ,Seattle , Lesotho .Custom orders are acceptable with different quality grade and customer's especial design. We are looking forward to establish the good and successful cooperation in business with long terms from the customers of all over the world.