[PowerMaster10 ADT]

Ok, thank you everyone for all advises. 

[PowerMaster10 ADT]

Will it work if I take modem out? Didn't try to avoid alarm goes off

[PowerMaster10 ADT]

So anyway it is a bit dangerous leaving possible access to my home security system... How can I be sure that somebody who can (have) access to my security alarm not gonna disarm it while I'm away? It not safe, is it?

[PowerMaster10 ADT]

Ok, thank you for that info.

Without ADT subscription  once alarm is trigger, how long it will be on? Can that be set without master installer code? I only have user code but I can add or delete devices etc.

[PowerMaster10 ADT]

Ok, thank you for quick answer.

 

I have another question then:

Hi,

Can I arm/disarm this alarm from my mobile without adt subscription? It has mobile modem to report events.

[PowerMaster10 ADT]

Hello Everyone,

 

I have recently bought a house and I have already  PowerMaster10 ADT security alarm installed but I have no installer (or master installer?) codes for it to change code for arming and disarming alarm. I tried reset it according to instruction found on the internet but it didn't work. Any chance to reuse it or it is junk now?