Shenzhen Lydian Technology Co., Ltd, which is a high-tech enterprise that engaged in research\development manufacturing\ marketing and service of the home security products. It is quite independent in the R&D and manufacturing of products like fire extinguisher balls\smoke and fire sensor\gas detector\carbon monoxide detector\burglar alarm\active/passive infrared detector\wireless/wired door sensor \emergency switch\border guard and etc. Moreover Lydian provides the whole world with high quality...
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