5 of 5 people found the following review helpful
Very good text book,
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This review is from: Intruder Alarms (Paperback)
I bought this book to find out more about alarm sensors and it certainly has excellent information about these. I was surprised to find that it's actually a text book rather than being aimed at the general reader so it's pretty technical. Seems to be up to date as well - it's in it's third revision.