guys – I have a 2-story home with finished basement & unfinished attic. I need 3 smoke & Carbon Monoxide alarms as google nest is coming up to 10 years. I need PowerG OR 345mhz since my Qolsys QS9201-5208-840 panel doesn’t support 319. Any recommendation? DSC powerG PG9936 or Honeywell 5808W3 or something else? Oddly enough none of these detect CO which I think is a necessity in any closed home in the northeast which still has a gas stovetop and 2 furnaces connected to a forced air HVAC (basement & attic) and also a 40 gallon hot water heater

I’m hopeful to find something under $100 a piece unless there is nothing reliable in that budget. Thanks