ProSense Technologies Co., Ltd, invested and run by Relations , is aimed to be a world leading company in gas sensing field and owns several tens of patents & non-patent core technology about gas sensing. ProSense employs high qualified professionals and personnel with extensive experience and is equipped with state-of the art laboratory for R&D and automatic production line. ProSense provides more than 100 types of high quality sensors, among which are supported noble metal catalyst, gas diffusion electrode, MEA, gas sensor with long service life, gas sensor based on fuel cell technology, electrochemical sensor, lead free oxygen sensor based on fuel cell technology, etc. You can rely on ProSense for reliable gas sensing module and gas sensing solution.ProSense is the sole dominated manufacture of HCHO detection module for DART SENSORS.WZ-H3 selective HCHO module, manufactured by ProSense, is famous for its long life and selectivity.