How To Choose Anti-theft Alarm
Burglar alarm security market confusion, the customer is often difficult to choose
, how to properly select the burglar alarm? I suggest the following:
1, it is the factory authorized distributor of regular, formal channels generally tend to offer more favorable prices, quality service and quality products.
2, product packaging: whether the product contains the name and address, and contact mark? If not, or is missing then draw your attention to three non-product or whether it is fake and shoddy products, because the formal product packaging manufacturers must have the above .
3, alarm host, infrared detectors, door is through the national compulsory 3C certification, 3C certification for the security products must pass certification, but also to ensure product quality the primary factor.
4, host adapter is built-in alarm, the provisions of the host country 3C transformer must be internal, external 3C is not possible through the national test.
5, whether the built-in alarm siren? External siren alarm security is relatively low.
Infrared detector alarm host and whether the anti-tamper and related components? No such self-protection capability is 6, reported poor, vulnerable to vandalism.
7, the infrared detector on anti glare feature? See if this hardware, the device can prevent glare false positives.
8, it has its own infrared detector temperature compensation? See if this hardware, the device can prevent false alarms caused by temperature changes.
9, the infrared detector has a frequency stabilization circuit board components? This component to prevent the magnetic field pulse, the same frequency, high frequency, sound and other signals caused by false positives.
10, with or without low-power prompts and related components? This feature to prevent the voltage instability or low power brought about by the false positives.
11, with or without the use of micro-power design? Whether the power saving mode and standard mode? This feature to the Director of the battery
12, infrared detector is to provide 9-12V DC input interface, dual power supply mode, to ensure that the detector can not intermittently, to reduce the hassle of replacing batteries.
13, infrared detector with battery type? An ordinary AAA batteries easy to replace, multiple choice type of large, massive battery is less convenient and less power consumption.
Source: http://www.articlesbase.com/electronics-articles/how-to-choose-anti-theft-alarm-3778244.html
by: orange en
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