Established in 1996, Shenzhen Alean Security Equipment Co., Ltd is a high-tech company integrating R&D, manufacturing and sales. the product range includes photoelectric beam detector,pir detector,gas sensor,smoke detector,home alarm system and wireless accessories,our products have been approved by CCC/CE and ROHS. Products have been distributed through 30 countries (Asia,Europe,America,Australiaand/Africa). In China mainland, ALEAN has set up three wholly-owned subsidiaries, established over 20 marketing service centers and has more than 100 regular authorized distributors.