Shenzhen Prosino Technology Co.Ltd As a leading supplier in China, Prosino was founded in 2008.Focus on Environmental Monitoring Solutions.specilized in Our factory plant is over 5000 sqm with more than 200 workers. including 15 employees in the engineering dept.and most of them have more than 10 years of experience in such industry. So we're able to provide you with very professional OEM and ODM service. Thanks to our strict quality management system and responsible QC workers, we always focus on high quality products.our RMA rate can always maintained in a very low level, much smaller compared with our counterparts. and that's the reason why many big companys have been working with us all along.Moreover,our company is open for great thoughts, if you have any great design and want to realize it,then we're the right choice that can make it come true. We desire to establish a long-term business relations with you based on mutual benefits.