How RF 443.92 MHz works?
Since the datasheet mentions ASK/OOK (Amplitude Shift Keying / On Off Keying) I'd say the receiver (assuming compatible type like this) will output what goes in, yes. It's a very basic module. It looks like it is designed to be used with an encoder IC like a remote control, although you don't have to do this.  

It's very unlikely you will have to limit current to the pins, but a series input pin resistor (e.g. 1k&Omega;)  won't hurt if you want to be as safe as possible.