🔺【Fits】：Compatible With all Otis and Xizi Otis elevators 🔺【Unique Design】：This tool comes with a powerful adaptor that can connect to different types of elevators.Adopting a double line LCD display key clear rear with magnetic attraction 🔺【High Quality】：Made with high-quality materials durable and sturdy, not easily damaged, can be used for a long time 🔺【Function】：The GAA21750AK3 is the most advanced version of elevator test tools available on the market. It has more functions and features than other models.Unlimited times which can check and adjust GECB data，can improve the efficiency and use of detection 🔺【Perfect Service】： Friendly return policy and customer service. If you have any questions, please contact us by email, we will reply you within 24 hours Product Description Fitment/Applications: Replacement for all Otis elevators Replacement for all Xizi Otis elevators