Audible alarm for blind person [RE-wrenches]

[Windy Dankoff, Dankoff Solar]

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>Hello fellow wrenches,
>I have a blind customer who needs to have an audible alarm to alert her of
>low battery bank so she can start gen/set when batteries are low in winter
>months. She lives alone, so nobody to help her monitor battery condition. I
>will be able to check on her once a week or so, but what if the batteries go
>dead in between my visits? Anyone able to help here? Any and all info greatly
>appreciated.......
>
>
>SUNcerely,
>Frank Fowler


Frank,

This reminds me of audible interfaces that blind amateur radio 
operators use to read frequency. Number of beeps varies with voltage 
... something like that.

You could search for a network of blind hams and their support group 
and maybe find somebody to offer advice. It's nothing complex just to 
read voltage.

Windy

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