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NEW Upgrade GSM PSTN Russian English Voice Remote touch-key Wireless Home House Burglar invasion Alarm System Upgrade G3B GSM PSTN Attention:This series of products has the English, Russian Voice. The default delivery English system.If you need Russian language. please leave us the message.It requires additional $1 (please choose the following links).Attention PLS: This manual is only in English.we have PDF Russian manual .if you need it .Please leave your email.I will send it to you.If you are the following countries. You will receive a corresponding system.Russia and Ukraine: The default delivery Russian system . How to choose and use an alarm system1. Now there are so many kinds of home alarm system products in the market that you may not know how to choose the most suitable. Here we have some suggestions about how to choose and use an alarm system for you.2. Knowing whether you need a wired system or a wireless one. Normally we recommend wireless system because it is much easier for you to instal
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