I own a company, GreenBeansSolutions.com that installs a water management device that guarantees to save my clients up to 30% off there water bills, I've been doing this for five years, servicing many Laundromats, hotels and malls, but now i'm proceeding to install sub meters for the commercial industries, I'm attempting to learn the OPC software and the interface concerning water "Only" consumption right now. For my first job which entails 8 sub meters, I'm entertaining the idea of buying smart meters from China. My predominant product size will be 3/4" water meters because i have a client. My question is what type of specs should I supply to "China" if I choose to purchase from him, so to water meters will integrate with the software platform this company represents. Any helpful recommendations?