Xiamen SimPal Co., Ltd. Local in Xiame, China, mainly working on smart home product development and production. The R&D team has worked on GSM/4G & WiFi product for more than 8 years, proficient in PCB hardware design, firmware development, APP and server firmware customization. Our SimPal series GSM power socket, GSM temperature monitor, WiFi temperature socket and 4G alarm camera already sold to Norway, Sweden, Russia, Germany, UK etc more than 30 countries. "Sustainable", "Honesty"and "Innovation" are the principles of company, respect customer's profit and mutually beneficial cooperation will help us growing with customers.