rtl_433 (despite the name) is a generic data receiver, mainly for the 433.92 MHz, 868 MHz (SRD), 315 MHz, 345 MHz, and 915 MHz ISM bands. The official source code is ...
Compiling rtl_433 requires rtl-sdr to be installed. Depending on your system, you may also need to install the following libraries. Debian: sudo apt-get install ...