I want to know if I could use a simplex duct detector test switch key in this pull stations GA key switch
I don’t believe so, I’m not sure what kind of key it takes though. Maybe someone else can help with that.
Assuming, it’s this key, then you can.
Most GA key switches can use that key
Really? Huh, had no idea. I guess I’m all set then if I get a 270-GAO or otherwise any device with that kind of lock (as I have one of those keys).
Don’t you have a pre-signal 270-spo ??
Yeah, that’s how I knew that key would work
Thank you so much 
