Our company DINSHEN INDUSTRIAL CO LTD lately updated our OTIS service tool blue type GAA21750AK3:
Latest version ,can adjust all OTIS elevators including the GECB boards /
Standard function,most powerful,black & stainless steel plug for your option
Usetime is unlimited ,can use it for ever until it is too old .
Price is very good and reasonable and we have sold a lot of pcs to overseas market such as India,Korea,USA,UK,Israel,Mauritius,Iraq,Russian,Mexico,Italy,Spain etc
Welcome all customers from all over the world come to us for this latest & powerful OTIS service tool GAA21750AK3 .