CO Alarm

Well guys I put some juice into it.... and.... I don't think 5 volts is going to drive the relay... I need a different relay or transistor. I put a 2N3904 in the equation and nothing. I did test the relay by putting the 12v PS to the coil terminals and it's clicking so it's a good relay. Now with my completely non-existent electrical background I need to figure out exactly which parts I need. The voltage on the relay says both the NO and the NC are 14 volts. Do they make relays that one is like 5 volts and the other is 12?