What is the difference between these IQ smoke detectors, the PG9936 & QS5110-840? Is it just power G? I want to order 4 of these units. The furthest away fro the keypad would be about 35 feet and 2 walls. What would you recommend?
The IQ Smoke detector runs on the Qolsys/GE 319.5 radio while the other is on PowerG.
If you have a panel that supports PowerG, then I believe the PowerG detectors will act like interconnected smoke detectors. If the fire alarm goes off at the panel, then all of the PowerG detectors will go off as well.
I recommend the PG detectors if u have the Plus panel
PowerG model is generally recommended as you have the option to use one-go-all-go settings, turning them into a virtual interconnected circuit so they all sound when one does. Other than range, this is the biggest difference.