Safetyman
Member
ACE Hardware in my town carries the same selector knob in their hardware racks used on the PA series sirens. I bought 2 and tried on my PA15 and PA150 and fit nicely on the switch. They had a different version of the GAIN knob (no pointer).
The SELECTOR knob costs $3.50 each.
Bill
The SELECTOR knob costs $3.50 each.
Bill