How significant is the sensor encryption feature? What could be the risk if the sensor communication is not encrypted? Which GE sensors support encryption?
Sensor encryption helps limit spoofing potential, someone using a device to try to capture the id of a sensor, then spam status signals to the panel, making it look open/closed.
All GE sensors sport encryption.
I plan to get 2 secondary panels. Whose secondary panels works better, Qolsys or GC3?
The GC3 does not yet have a comparable secondary touchscreen keypad. It can use the PAD1, but it is little more than a keyfob with a number pad, with no feedback.
What are the main advantages of GC3 over Qolsys IQ panel?
These questions are often too subjective to really answer effectively. Things I would personally call objectively better:
- Capacitive Touchscreen on the GC3
- Replaceable Communication Module
Which outdoor cameras would you recommend? Does any of the panels support Hikvision cameras?
Cameras do not communicate with the Alarm panels, they communicate directly with Alarm.com via your internet. Only Alarm.com models are compatible. A list can be found here.