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Zrabra®

Dual Beam Infrared Bijection Alarm Detector System with LED Voltage Display XA-100

Digg(100) ( 8 Reviews)
       
US $61.99
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Look this high sensitivity alarm detector, you will get what you want! Dual beam infrared variable frequency bijection alarm detector system with LED voltage display. This Infrared Alarm Detector is ideal for observing visitors to offices, homes, shop, clinics and so on. This wired alarm can be easily installed and it is low power consumption. The Alarm Detector System is designed for the security practice, developed a new type of omni-directional high sensitivity alarm sensor with omni-directional detection, sensitivity adjustable, high anti-jamming capability, good product consistency and interchangeability, small size, high reliability.The best alarm detector is a best choice for you. So what are you still waiting for?
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Product Description

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  • Specifications:

    • Dual Beam Infrared Bijection Range: 100m(outdoor); 300m(indoor)
    • Working Voltage: DC 13.8 ~ 24V
    • Current: 40mA ~ 65mA
    • Operating Temperature: -25℃ ~ 55℃
    • Operating Humidity: 5% ~ 95%
    • Visibility(RH): ≥5m
    • Sensing Speed: 50 ~ 700ms
    • Beam: 2 beams

    Features:

    • DSP clip, high alarm technology
    • Wired Alarm Detector System and BUS system compatible, holographic spot real-time report
    • Self-adaption in environment and trouble locking
    • Auto-adjustment transmit power for environment
    • Infrared alarm detector has upper and lower optical glasses structure for high precision
    • Best Alarm Detector is suitable for both indoor and outdoor use
    • Highly accurate lens with double focus
    • Low power consumption

    Details:

    Zrabra Dual Beam Infrared Bijection Alarm Detector System with LED Voltage Display XA-100

    • DSP clip, high alarm technology, dual beam infrared variable frequency bijection alarm detector system with LED voltage display

    Alarm Detector System

    Infrared Alarm Detector

    • Wired system and BUS system compatible, holographic spot real-time report

    Best Alarm Detecto

    Zrabra Dual Beam Infrared Bijection Alarm Detector System with LED Voltage Display XA-100

    • Upper and lower optical glasses structure for high precision and it is can be easily installed and low power consumption

    Alarm Detector System

    Infrared Alarm Detector

    Best Alarm Detecto

    Bijection:

    Zrabra Dual Beam Infrared Bijection Alarm Detector System with LED Voltage Display XA-100

    • In mathematics, a bijection, or a bijective function, is a function f from a set X to a set Y with the property that, for every y in Y, there is exactly one x in X such that f(x) = y. It follows from this definition that no unmapped element exists in either X or Y.
    • Alternatively, f is bijective if it is a one-to-one correspondence between those sets; i.e., both one-to-one (injective) and onto (surjective). (One-to-one function means one-to-one correspondence (i.e., bijection) to some authors, but injection to others.)
    • For example, consider the function succ, defined from the set of integers to , that to each integer x associates the integer succ(x) = x + 1. For another example, consider the function sumdif that to each pair (x,y) of real numbers associates the pair sumdif(x,y) = (x + y, x - y).
    • A bijective function from a set to itself is also called a permutation.
    • The set of all bijections from X to Y is denoted as X ↔ Y. (Sometimes this notation is reserved for binary relations, and bijections are denoted by X ⤖ Y instead.) Occasionally, the set of permutations of a single set X may be denoted X!.
    • Bijective functions play a fundamental role in many areas of mathematics, for instance in the definition of isomorphism (and related concepts such as homeomorphism and diffeomorphism), permutation group, projective map, and many others

    Smoke Detector:

    • A smoke detector is a device that detects smoke, typically as an indicator of fire. Commercial, industrial, and mass residential devices issue a signal to a fire alarm system, while household detectors, known as smoke alarms, generally issue a local audible and/or visual alarm from the detector itself
    • Smoke detectors are typically housed in a disk-shaped plastic enclosure about 150 millimetres (6 in) in diameter and 25 millimetres (1 in) thick, but the shape can vary by manufacturer or product line. Most smoke detectors work either by optical detection (photoelectric) or by physical process (ionization), while others use both detection methods to increase sensitivity to smoke. Sensitive alarms can be used to detect, and thus deter, smoking in areas where it is banned such as toilets and schools. Smoke detectors in large commercial, industrial, and residential buildings are usually powered by a central fire alarm system, which is powered by the building power with a battery backup. However, in many single family detached and smaller multiple family housings, a smoke alarm is often powered only by a single disposable battery

    Carbon monoxide and carbon dioxide detection:

    • Some smoke alarms use a carbon dioxide sensor or carbon monoxide sensor in order to detect extremely dangerous products of combustion. However, not all smoke detectors that are advertised with such gas sensors are actually able to warn of poisonous levels of those gases in the absence of a fire
    • Performance differences
    • Optical or "toast-proof" smoke detectors are generally quicker in detecting particulate (smoke) generated by smoldering (cool, smokey) fires. Ionization smoke detectors are generally quicker in detecting particulate (smoke) generated by flaming (hot) fires
    • According to fire tests conformant to EN 54, normally the CO2 cloud from smoke can be detected before particulate
    • Obscuration is a unit of measurement that has become the standard definition of smoke detector sensitivity. Obscuration is the effect that smoke has on reducing visibility. Higher concentrations of smoke result in higher obscuration levels, lowering visibility

    Package Included:

    • 1 x Set of Alarm Detector System

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Average Customer Review:
  ( 8 Reviews)
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Henry Perlstein

Bought this item on

04-27-2011

 
Nice quality
00:00:00 04-27-2011
Good price, and works well. I will recommend it to others.
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Rodolfo Saldivar

Bought this item on

04-12-2011

 
Does what it says it does
00:00:00 04-12-2011
Happy with this product. It works well for me.
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Scott Weitzel

Bought this item on

03-26-2011

 
better
00:00:00 03-26-2011
I bought 2 other ones like this and both set off false alarms,I was ready to hard wire one then I looked up this 1 so I gave it a try I am very pleased with this purchase I will be purchasing here again!
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Patricia Puckett

Bought this item on

03-17-2011

 
Great value
00:00:00 03-17-2011
Works great, after taping the sides a bit as suggested by another reviewer, not experiencing very many false alarms---over all very happy-great price
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Jenny McKee

Bought this item on

03-13-2011

 
Alarm Detector System
00:00:00 03-13-2011
Works Great ! Great Value ! I used it to let me know that there are deer in my yard at a feeding area we set up.
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Martin Weickgenannt

Bought this item on

03-03-2011

 
Best Alarm Detector
00:00:00 03-03-2011
So far so good. Positioned under my deck and facing toward the front door. Works very well and no false alarms.
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Mats Sjödin

Bought this item on

02-17-2011

 
Infrared Alarm Detector
00:00:00 02-17-2011
This device works great. it is sensitive enough to beep if a leaf crosses it's path as it falls. It works flawlessly. If it had a vibrate function on the receiver I would give it 5 stars.
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Tore Baldersheim

Bought this item on

02-03-2011

 
Alarm Detector System
00:00:00 02-03-2011
Overall this is a great item. I received mine with a loose bottom button.
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