Hi Gamres

Am new to fire alarms since 2019

I’ll admit, the topic title along with what you wrote confuses me, but I’ll try & make sense of it. Are you saying you’ve been an enthusiast since 2019?

nah bud i’ve been working on fire alarms since june of 2019, they work good with 9 volt batteries and then i upgraded to a 16 volt power supply. now i got 19 volt power supply i can work my fire alarm on