detecting presence

Using Arduino Sensors
1

Excuse my so bad English, but I'm using the google translator because i don't know much English. He wanted to know if anyone has used any of these sensors or know how I can use with my Arduino Leonardo.

Thank you for your help.

2

They probably use a 2272/2262 chip. The fuzzillogic and rc-switch libraries are able to read that protocol.
https://bitbucket.org/fuzzillogic/433mhzforarduino/wiki/Home

3

These a movement sensors, not presence sensors. They will only trigger when someone moves.

A presence sensor (such as a switch under a box) will change when the object is removed.

Explain what you want to do for more advice.

Weedpharma

4

Did you notice that dedicated forum sections exist for many languages?