Fire prevention and theft prevention is our concept of staying at home, although our public security is very good. But it is still necessary to do a good job of prevention in time. In this way, we will live in peace of mind and will not consider any unsafe factors. Today's high technology is the product of electronic system. Let's talk about the price of door and window burglar alarm first. Let everyone know more about it. It's not surprising to buy it.

Door and window burglar alarm price

1, TGSG-0 1 audible and visual alarm outdoor waterproof crown block LED comprehensive industry audible and visual alarm 220V price 330 yuan.

2.YS-0 1Y small industrial wireless remote control audible and visual alarm remote control audible and visual alarm. Price 430 yuan

3. The burglar alarms of doors and windows are powered on or off. Different household door and window burglar alarms have different effects and are also suitable for different places.

Buy a safe and reliable security door

1, active infrared alarm means that the alarm actively emits infrared rays. Infrared rays will bounce back when encountering obstacles and be received by the probe of the alarm.

2. Passive alarm does not use infrared rays with fixed frequency. When the infrared ray received by the alarm exceeds a certain set value, it will trigger the alarm. This kind of alarm is prone to false alarm due to the influence of weather, and is generally installed on remote doors or windows.