Engine Alarm -355

[david mills]

My alarm buzzer has failed, and I’m quite sure it is the alarm itself and not the sending unit. I tried to pull info from the old unit but several numbers/letters are faded/obscured. If anyone else has replaced the alarm and knows the unit to order to fit in our dashboard faceplate, I would appreciate the info. From what I can see, it looks like:
Inter___ BRP45 -CD. Thanks very much.

Dave Mills
Island Time II
Hull 56

[Ken Kloeber]

Dave

Intervox BRP4535S-12-CD dual tone piezo alarm

I probably have one in stock here but just google the number and you're likely to find one nesr you. 

r/

Ken Kloeber

Weekend’R Products

Sent from my phone

On Mar 7, 2026, at 2:40 PM, david mills <millsd...@gmail.com> wrote:

My alarm buzzer has failed, and I’m quite sure it is the alarm itself and not the sending unit. I tried to pull info from the old unit but several numbers/letters are faded/obscured. If anyone else has replaced the alarm and knows the unit to order to fit in our dashboard faceplate, I would appreciate the info. From what I can see, it looks like:

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[david mills]

Thanks so much, Ken!

On Mar 7, 2026, at 3:13 PM, 'Ken Kloeber' via Catalina355 <catal...@googlegroups.com> wrote:

Dave

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[bill pittore]

Hi Dave,
If the engine is off and you turn the key on does the oil pressure light come on? If that comes on and the buzzer doesn’t buzz then it could be the buzzer. The schematic shows some isolation diodes that drive the buzzer and it’s possible one of them is bad but unlikely.

Bill

[david mills]

Thanks very much, Bill. My recollection is that the answer is “yes”, but I will double check. The alarm started sounding like a wounded duck a few times before it went silent, making me suspect the alarm itself.

Best, Dave

> On Mar 7, 2026, at 6:08 PM, bill pittore <bill.p...@gmail.com> wrote:
>
> Hi Dave,

> To view this discussion visit https://groups.google.com/d/msgid/catalina355/8EEFFA34-E879-4723-BF90-FED7EBBCD367%40gmail.com.