Name: (GAA21750AK3) Elevator Blue Server Test Tool Size: 178 x 96 x 42mm; Color: Blue Double line LCD display, key clear. Perfect fit for O-T-I-S & X-I-Z-I O-T-I-S. This bule test tool can be used in all the OTIS & XIZI OTIS elevator Package Included：1 x Elevator Blue Server Test Tool GAA21750AK3 Universal Server Elevator Blue Test Tool Unlimited Times Unlock Elevator Service Tool TT/Converter With Powerful Adaptor