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Mend Optima Plus Home Alarm Systems

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Change bell time on Optima 2 plus but no engineer code?

I need to change the bell time from continuous to 20 mins on my Optima 2 Plus alarm but I only have the customer code and not the engineers code.
Can anyone suggest how I can overcome this ?

Paul
June 2010
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Mend Security Systems, Home Alarm Systems
Click here to mend Optima Plus home alarm systems