Heated VS Single Wire Oxygen Sensor

All,

I have read some information about these different kinds off senssors. I have a 1994 S10 4X4 Blazer, and was wondering what the differences are?

The chiltons doesn't say which one to use, and even though it probably does not matter, I just wanna know the differences ;)

Thanks,
Skeeter6755

Your uses a heated O2 sensr which get the sensor up to operating temperature quicker so it will respond faster.