Guangzhou Haoye Security Technology Co., Ltd. is a professional andHi-tech CCTV camera manufacturer in R&D, production. We haveowned our brand "GSA"and also welcome OEM and ODM brand.  GSA is a professional manufacturer. Our products include allkinds of CCTV cameras,DVR and NVR and security accessories etc. wecan provide full range of products and provide with apersonal-service,We step into CCTV camera production group based onthe collection of advantage of each other and central technologyAll of our products are passed ISO9001, qualified by CE, FCCcertifications and accord with RoHS directive approved.Â