Shenzhen Tongdazhi Technology Co., Ltd. our company specialized in tripod turnstile, swing barrier, flap barrier, cylindrical swing gate, supermarket turnstile, barrier-free access, barrier gates, access control, consumption system as the leading factor for many years. And gradually improve combined with magnetic card, IC/ID card, bar code, card machine series product integration application. Stable building site system, parking system, school communication system and Public garden ticket sale system.