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 what's the name of the metal round silver thing? a
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samsimon2021
Starting Member

USA
1 Posts

Posted - 08/15/2021 :  5:03:29 PM  Show Profile  Reply with Quote
Hello,

1 What’s the name of the round silver metal part (that generate sound)?

2 I’ve tried to reduce the noise sound, by covering this part with scotch tape, foil, painters tape, rubber, cotton balls…. But it’s still super loud, I bought it to use on my fridge, the door occasionally doesn’t close all the way… I don’t need super loud alarm noise, I need it to be just small alarm noise… Is there any decent way to reduce the noise of this thing?

3 It seems whatever touches it (round silver metal part) amplifies the alarm sound…. But I still need to get it in the box and function properly, just need to reduce the sound… I already tried to glue gun the area on the box, it doesn’t help… I need directly to reduce the sound that comes out of this silver round metal thing, especially when it touches something/attached to anything/goes inside the box…

thanks a lot

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BLH
Advanced Member

6370 Posts

Posted - 08/16/2021 :  03:38:21 AM  Show Profile  Reply with Quote
The round silver metal device. Is a Piezo Sounder element.
Normally it is driven by some electronic driver. Your pictures show it probably does not have a built in driver. That was powered by a DC voltage and a built in electronic driver circuit.

You may want to try putting a resistor in series with one of the leads. To see if it can reduce the drive or find the driver circuit and reduce the drive there.

A web search may find you more information on a Piezo Sounder element.

Does the unit have a model number. We maybe able to look at for more thoughts?
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jetfulfilled
Average Member

Philippines
111 Posts

Posted - 08/16/2021 :  10:34:23 PM  Show Profile  Reply with Quote
It is a piezzo sounder and you can actually control the volume. Figure out where to connect the wires. You can check YT for a tutorial.

jetfulfilled
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