I always rent AirBnBs with Wi-FI. I connect the doorbell to the Wi-FI network. Then, when my wife and I return from being out and about, I use my phone to check for motion-activated video of anyone who came to the door or who might have broken in. I also sleep better knowing that any motion outside will sound the app on my phone.
The only place this doesn't work is in Cuba, where home Wi-FI is illegal.
Best of all, you can use one or two of these products to watch your home while you're a way, and use another to protect you wherever you are. All the cameras are viewed and controlled in the same app.
There are other comparable products on the market as well.
A last bit of advice
New technology and new products make traveling safer than ever. My best ideas for staying safe are easy, affordable and powerful.
One final word of advice: Visit Mexico City! It's an amazing place with a million things to see and do and the best street food in the world. And it's safe -- if you use mobile technology to your advantage.
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