Original OTIS Elevator Service Tool GAA21750AK3, Blue Test Tool (Debugger) GAA102BDX3

The Blue Test Tool (Part Number: GAA21750AK3 / GAA102BDX3) is used for OTIS elevator and escalator, such as below: ACD1, ACD2, ACD3, ACD4, GEN2, SKY, OH-CON, OH1000, OH5000, OH5100, 2000, 3000, 3100, 3200, 3300, STAR, HOMELIFT, 21VH; Inverter: SIEI (AVY, AVO, AVS), OVF20, OVF30; Door Controller: DCSS4, DCSS5, DO3000, Easy-con, Easy-con-T, Jarless-Con, Jarless-Con-T; Motherboard: GECB, LCB_II, ALMCB, TCBC, TCEC, RCB2, GDCB, etc.