Wire to use with Sensors
I am assuming you are sending the sensor data some distance.  May not be the best but easily available is cat5 networking wire.  Ideal wire probably has twisted pair with a shield, just enough conductors to get by.  You may be able to find some audio wire set up this way.  

If you can some processing of the sensor data prior to transmission can help.  For example converting to a differential signal, or taking a voltage and converting to a frequency.