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Door / Window Sensors:
These sensors are used to protect the opening of both doors and windows.
If a burglar opens the protected door or window, a magnetic switch inside the sensor,
will trip, which sets off the security system.
Install one at every entrance to make sure your home is protected. Each sensor is
supervised (self-checking) for professional reliability and offers you choice in design and performance

It will work with alarm systems, compatible with most standard security system.
Pull out the antenna of the magnetic detecto: when the door or window is opened
from the closed position, LED 1 will turn to red for 2 seconds,
the magnetic detector will be triggered and will send alarming signal to the main unit.
Indication of low battery: When the voltage of battery is less than 7.5V, LED 2 will straightly turn on red light.
At this time, you nee to immediately change the battery.

Feature:
12Door sensor Home alarm GSM alarm system,security alarm LCD display Vioce prompt Auto Dialer TCS-02 2pcsUS$ 360.00/lot2 pieces / lot |
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106 zones GSM Wireless Burglar Alarm Home Security Systems LCD Auto Dialer Home Alarm DHL Free TCS-02US$ 149.00/piece |
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GSM Wireless Burglar Alarm Home Security Systems LCD Vioce prompt Auto Dialer TCS-02US$ 192.00/piece |
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TSC03 Wireless home security alarm system voice prompt instruction LCD display landline alarm burglar auto-dial alarm systemsUS$ 299.99/piece |
1 pcs Burglar Alarm System Loud independent Flash Siren as home alarm system free shippingUS$ 46.32/piece |
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Wireless PIR Detector (human body infrared detector) best quailityUS$ 9.99/piece |
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Wireless Smoke/Fire Detector Sensor For Auto Dial Burglar Alarm SystemUS$ 9.50/piece |
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5 pcs Free shipping Economical Wireless door sensor / door magnetic contact in 433mhz or 315mhzUS$ 16.84/lot5 pieces / lot |

