$40 Security Alarm Company Logo – 48 hours!

Hi,
I'm back with yet another amazing contest. I previously did a similar contest but the company changed the name of the company and now want a better logo!
Details:
48 hours.
Logo for security alarm company 'Harpenden Alarms Ltd'.
No specific colour preferences.
Open to ideas and creativity.
Ideas of nice logos:
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$40 Security Alarm Company Logo – 48 hours!

See original post by andyleem