Guardian Money readers submit questions every week, and it's up to you to help. Next Saturday's best answer will be selected.
One of our neighbors was robbed last week, so we want to be alerted. I saw a wireless alarm system online that I can install myself. Do they actually work, or is it better to pay for a professionally installed system that is monitored by the police? Thank you for your feedback.
Is there a problem the reader can solve? Email your suggestion to money@theguardian.com or send us to Money N, 9 York Way, 90 York Way, Guardian, Kings Place.
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