Yashin from ArcanumX wrote a post about analyzing 433 Mhz transmitters, a common transmitter found on weather monitors, power monitors and alarm sensors:
|"RTL-SDR is a good addition to the arsenal of any hardware geek and this holds true for hardware security researchers too.|
With this blog post I intend to demonstrate how the RTL-SDR can be used to sniff 433 Mhz transmitters. These are pretty cheap and can be found in a lot of appliances including alarm sensors. This post is also intended to be an intro to RTL-SDR usage. I suggest you get Kali linux (1.0.6>) on your system as it has most of the dependencies required for this demo.
To show the capture of data and to simulate a transmission I 19ll be using a FS1000A 433 mhz transmitter along with a Teensy to control it."
Find the whole article here.