[asterisk-users] Refrigerator Alarms

[Philip Prindeville]

That a refrigerator is getting power is not the same as it operating 
nominally.

Doors get left open... compressors fail...  refrigerant eventually leaks 
out of seals and coils...

Best to query it for temperature...  and at a point faraway from the 
coils, such as the top of the door... which as luck would have it is 
also the hardest place to wire to.  ;-)

-Philip

Kevin Withnall wrote:
> We use similar things here for issues like our generator battery 
> voltage monitoring. We just have a relay going into our alarm system 
> and as asterisk monitors our alarms it initiates emails or calls out. 
> The alarm system is also linked into a seperate SMS unit for emergency 
> backup so we also get SMS when any alarm goes off.
>  
> My basic alarmreceiver scripts are available at 
> http://kevin.withnall.com/2007/07/09/asterisk-alarm-receiver-using-triggers-mysql5/ if 
> anyone wants them.
>  
>
> --
> Kevin Withnall http://kevin.withnall.com/
> ILB Computing http://www.ilb.com.au <http://www.ilb.com.au/>
> PH: 02 4227 0001 Mobile: 0412 453 846 FAX: 02 4227 0081
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