Shuangri Solar hot water heater interlligent controller is the product that we bring into market after a lot of tests, ours solar adopts single chip micyoco(SMC) technology American Motorola company, it designed with PID comparison, integral calculus, ...

We are one of the leading manufacturer/supplierconcerning wireless internet related products such as bridges,access points,usb,pcmcia cards.We really creative and deeply concentratedout-door applicable manufacturerbased in Korea(south).Please ...