Since they’re all two-wire, it’s as easy as one wire in, one wire out. If you have three nine-volt batteries and some wire, you can make a very simple circuit. It’s okay if you don’t have a pull station yet, you can use a switch.
I’ll use ASCII art to demonstrate this.
( + ) ( - )
^ ^
Positive end of 9-volt goes here. Negative end goes here
You can connect the three nine-volts together, forming a sort of pyramid with the snaps. Remember, the small snap is positive and the fat snap is the negative.
Current devices is my one Genesis Horn Strobe (other one broke and the strobe only got me mad and I smashed it) Newest device is my FireX CB Smoke Alarm. I’m hoping to get more fire alarms soon.
6" which a teacher gave me which came from a paper mill in North Ontario. It’s 120V I use it to scare my friends and the cat that digs in my trash everyday.