Aerotech Interlock launch controller, warning tone buzzer #93099(it works with the polarity reversed)is wrong, look inside if you have one....

[86mustang408w]

If anyone has an Aerotech Interlock launch controller that doesn't work or make the warning tone when the safety key is installed, the part is labeled wrong, or marked wrong. But reversing that part #93099, it produces the tone. I'm not sure if Aerotech is aware of this or not, going to email them shortly. I've been thinking for years it was the buzzer part, they both work of you reverse the polarity.

 

[MikeT]

Honestly it's a pile of junk. Mine lasted one launch than I started having issues. Get a Go Box, it works. I use
a 3 cell liPo.
http://www.pratt-hobbies.com/proddetail.asp?prod=GO-12

 

[aerostadt]

I had one of these years ago and it worked fine for many years, but finally wore out. I see Apogee still sells them, but they are very expensive there.