Pole barn 120' from the house

@captain11​   Thank you for the response.  You don't know .....  what you don't know!  lol.  I'm so glad I asked this question before I ordered extra door / motion sensors.  

@shurt1073​ If you already ordered a system, do suggest you head over to Etsy and do a search on Simplisafe. One of the community members here modified an entry sensor with a long external antennae wire for longer range. I think it is about 22 bucks. I bought to use on my mailbox and, unfortunately, it was hit or miss even with that.  You may want to experiment that way.  The system is great, btw, in the house.

@captain11​   Current security company who monitors my home alarm wants to add a completely new system for the barn.  $1,100 for installation and $26 per month to monitor.  That's a tough pill to swallow considering I can throw a rock from my house and hit my barn 120' away.  There has to be a better solution ..... buying a $180 separate SimpliSafe unit solely for the barn with no wifi or LTE?   IDK     I'll figure it out but my house security is going SimpliSafe by the end of the year.  

@dlpsr​   Whoa ... all that is good stuff!   The pole barn is 24x32 with a 10' overhead door, one service door and two small windows.  I like your crime prevention ideas and its made me re-think all of my options for the barn.  

My phone call to SimpliSafe customer service today confused me because she told me the barn would be "no issue" at 120', along with my new home system, but down deep I knew it would be iffy from reading multiple posts.  

Thanks for the reply ..... I've got a few weeks to figure it out. 

@shurt1073​ Well, they're employees, 😂, sales and customer service is one and the same these days isn't it..some of the support is also "over there" somewhere and a bit lacking in training.

Theoretically, the SS sensors in open air used to be advertised as up to 800 feet... I'm old and forgetful so don't quote me.

But in a steel building that RF is not going to penetrate. Wifi wouldn't either. Plus the base will be in your house, behind walls also.

But, the sensors aren't that expensive to try it. And outside extras are available at Etsy.

The SS "sensors" do work ok.

Correction, Cameras are mediocre on solar, then My second biggest gripe is its an entirely closed system. So I built my own on top of home assistant. Redundancy is a good thing