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Zrabra®

Wireless Digital Security Intelligent Home Burglar Alarm System CG-7700

( 2 Reviews)
 
US $72.99
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Smart Wireless High-loudness Sound & Light Alarm System CG-7700, Suitable for home, office, shops, garages, warehouses and other anti-theft areas. EEPROM information protection, power cut won't cause damages to data。

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  • Specifications:

    • 100% wireless configuration, installation by DIY
    • Convenient operation by remote control
    • Simple accessory expansion by automatic recoding
    • Late-night mute remote control
    • On-site high-loudness deterring alarm
    • EEPROM information protection, power cut won't cause damages to data
    • Automatic switch between AC and DC ensures uninterrupted operation of the system
    • Suitable for home, office, shops, garages, warehouses and other anti-theft areas
    • Size: 158 x 98 x 28mm / 6.2 x 3.9 x 1.1in (L x W x H)

    Details:

    Zrabra Wireless Digital Security Intelligent Home Burglar Alarm System CG-7700

    • Simple accessory expansion by automatic recoding

    Zrabra Wireless Digital Security Intelligent Home Burglar Alarm System CG-7700

    • Convenient operation by remote control

    What Is the History of the Burglar Alarm?

    Burglar alarms have been around for thousands of years. The most basic alarm used by ancient humans was the dog. It would protect property and guard against people who were attempting to take valuables. Over time, humans used other tricks like chimes to warn them against burglars. Modern burglar alarms, however, are far more elaborate and use advanced forms of technology

    Invention:

    • In 1852, Edwin Holmes invented the first electric alarm system in Boston. The basic design featured a tripwire that electrically powered a solenoid that struck a gong when it was set off. He started a business with the concept and moved to New York

    Implementation:

    • In 1905, the American Telephone and Telegraph Company purchased the Holmes business. Using the advanced electrical grid that was established in New York, the company linked the personal burglar alarms to police and fire departments

    Motion Sensors:

    • Starting in the 1970s, a number of alarm systems came equipped with motion sensors. These used basic ultrasonic technology that were emitted from a sensor and reflected back. Any change in sound would cause the system to go off

    Improvements:

    • During the 1980s, improvements to motion sensors merged with other technologies. Motion sensors began to use infrared technology to avoid false positives and also superior electrical components to establish full home protection systems

    Integration:

    • Throughout the 1990s, the prices on home security systems fell. Many companies offered free installation packages with a monthly fee. The system was integrated with not only safety services, but also phone support from the company itself

    Package Included:

    • 1 x Sound and Light Host
    • 1 x Wireless Remote Control
    • 1 x Wireless Door Sensor
    • 1 x Alarm
    • 1 x Power Adapter
    • 1 x Wireless Infrared

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• If the order has not been shipped; please contact DinoDirect Live Support for order cancellation.You will get your refund within 24 hours.
• If the order has already been shipped; you may return the item to us postmarked within 30 calendar days of delivery. Please contact our Live Support to inform that.
• Please contact Live Chat or click here to learn more return policy.

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