1. Home automation: the two kinds of wireless sound and
light alarm
The alarm is very important in home security system of wireless home automation. But do you
know to choose the right alarm type ? now, there are some advice to tell you .
1. If you want to easy installing and no need to change battery . The first type is a good choice,
you will see, for this type, it is easy to install, just need some screws , you can fix it anywhere,
and no matter your house is decorating or not . and the power is 12V DC, no need to change
battery .
2. If you want to use battery as a power ,and at the same time you are decorating or improving
your house, you can choose the second one. This one should have a light hole place to install ,
but there are two power way to choose, one is battery, another is power. If you use for your
house, the battery is enough, if you want to use it in high building, to use the power .

2. Whatever you choose, one thing you should remember, all of them are wireless, so the first thing
is you should download the software from Google play or App store, then install your wireless
gateway, which is the core device of the whole ZigBee home automation system. Then you can
add these alarm into the zigbee networking.
And you can also choose other zigbee home security products to work with the alarm, like the IR
motion detector, the wireless smoke detector ,and Wireless Flammable Gas Detector etc.
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