What type of smokes is everyone using?

[fabriziojoe]

Hello!
I have come to the point in my project where it is time to install the smoke detectors.
There will be 3 zones with a total of 14 smokes. I am just trying to get a feel for the type of smokes everyone is using and if one brand is less troublesome than another.

Thanks for your input in advance.

 

[gatchel]

system sensor 4WTA-B

 

[Edge540]

just ordered 8ea 2WTA-B myself. Plan to use them with the Elk M1.

 

[dutchyn]

American Sensors ASD200 (x5).

 

[TXFlatLander]

+1 system sensor 4WTA-B, remote testing is nice too