They include an option to lock the battery and mounting bracket - like cheap plastic will stop someone from stealing the unit?The can just tear the unit off the wall - sell a wire mesh kit with a key if your worried about people stealing the battery or the unit itself

in the drawer, slides directly in and out, makes good contact, and closes tightly without an awkward plastic clip sticking out

Very well made with a loud siren, solid tough plastic, I mainly bought this model for the LED escape light as an extra safety feature that I really wanted in an alarm

This is the unpleasant feeling, flimsy plastic that will break at the slightest touch.

The plastic is a little flimsier than I would have liked, however the install was easy and the silence button is easy to get to.

Cheap plastic

The plastic seems fairly brittle and thin, so I'd be careful when installing, but once it's up you won't need to worry about it anymore.

Made of inexpensive plastic, thus a bit flimsy

Very well made with a loud siren, solid tough plastic, I mainly bought this model for the LED escape light as an extra safety feature that I really wanted in an alarm

It has a battery compartment held closed with the cheapest possible plastic pin.

It was super easy to install, is very loud, and works as it is supposed to

I've used them at my own house as well as in a rental property

What can I say, "It works as it should"

not as sensitive to smoke as i would like.

My bad as I waited too long to return.