Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: Can this device be programmed with my existing alarm system by me or will I have to call ADT installer.
Document: Got the item quick from the seller. Called ADT and they send me a technician to install it for free (2 sensor), all I need to pay ADT is the wireless receiver..ADT sells it for 125 each plus 105 for installation. If you have a monitored alarm system ask them for the installers code if they said a technician will come over and install it let them know that you the equipment you need it to be programmed... So it's free... Otherwise love the item, works very well and feel more secured when I leave the house.
Gave it 5 stars because it's so compact and so easy to install on the alarm system that I have which was the Honeywell Lynx Plus. Works as it's supposed to be and is very sensitive when I tried to test it out. I don't have pets but it says it won't trip the alarm for them, for now it works good for me.
Communication with panel shows some problem, I installed 8 pieces, one failed communication. The distance between the two device is reduced.
Works great. easy to install if you have a qualified alarm system Tech to do it for you. Small and not too obvious.
Instinctively I wanted to mount this thing high on the ceiling to kind of hide it but as it turns out if its too high and you turn off a celiing fan and leave the room set the alarm and leave the gradual slowing down of the ceiling fan will eventually set it off. It doesn't seem to be triggered by the dog ever so the PIR does work. Just follow instructions and mount it just about head level or just below ceiling fan and relax and enjoy your new peace of mind
Very easy to setup with the lynx plus. I have a cat and have no issues with the cat roaming the house with the system armed away.
Added this sensor to my Honeywell Lynx 5100 system. It works great. Delivery was faster than I expect. Will buy from this supplier again when I expand my system.
This is an excellent product.Easy to configure and works great with L5100 system.I have tested this product for almost a month with no problems to activate or deactivate. Cost worth it.
I have a small Boston Terrier. Weighs maybe 20 pounds. Walked across the floor in the entry way and set the system off. They ARE NOT pet friendly.
This is very easy to install with my honeywell system. I really like that the light doesn't come on every time you walk by it, like the older one I have. Plannign on buying two more for other areas of the house.
Answer: If you have the installers pass-code for your alarm panel, you should be able to install this sensor fairly easy, just follow the instructions provided with the sensor. although, I am not sure if ADT will allow you to add sensors on your own. I use alarmgrid.com as my monitoring company, they allow you to add as many sensor as your panel can support with out additional charges. I hope this helps!