Elevator Blue Server Test Tool GAA21750AK3 Elevators Lift Operator Debugger Blue TT Service Test Tool use for Otis XIZI Otis Elevator

Perfect. If I needed another I'd buy it in a heartbeat.

Recibí la herramienta en tiempo y forma... la probe y funcionó correctamente. :)

Used on several otis units. Gen2,gcs 211,311 and more. Book was helpful but i no longer use it... very basic.

Wish chord was longer ,but u can use extension. Works great totally satisfied not entended for public use if u don’t know what it is for or how to use don’t buy it. Really surprized ,just anybody can purchase one,for safety reasons.

Was just what I needed to work on the Elevators I service as an IUEC mechanic

Works perfect just as described, every feature available, no time outs... perfect!!!

Service tool doesnt work. Plugged into g2s drive it powers on and just says no response press module. Pressing module and any number does nothing

No instructions