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Magnetic Sensor Alarm Door Window Security System RL-9805

Digg(100) ( 9 Reviews)
US $4.99

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Thanks for visiting! Are you still looking for a best Magnetic Sensor Security System, here your dream will come true. This Door Window Entry Alarm is a best choice for you.Easily mounted by adhesive tape to window or door. Door Window Entry Alarm switch detects entry protecting your home or office whether you are in or out. Warning door/window sticker is supplied free in package. This Alarm Security System can be easily installed and no wiring required. It decline unauthorized entry and low power standby consumption. Quite easy and convenient to use. This Door Window Entry Alarm is necessary equipment for school, office, shopping and anywhere place which need safety. So what are you still waiting for?
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Product Description

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  • Specifications:

    • The Magnetic Sensor Security System detects vibration of the entry and send a alarm to scare the intruder
    • Protecting your shop, office, home or any entrance inside a house requiring protection
    • The door window entry alarm is quite convenient and easy to use, affix the mian unit of entry alarm at the side of the door window
    • This Door Window Entry Alarm has ON/OFF switch
    • The door window safety alarm can be easily mounted to windows or doors, no tools required
    • Extremely loud ( 90dB ) instant alarm
    • Power: 3 x 1.5V LR44 button cell(Batteries included inpackage)
    • Working Voltage: DC 4.5V
    • Monitor Distance: ≥15mm
    • Size: 63 x 31 x 22mm / 2.5 x 1.2 x 0.9in (L x W x H)


    OVP Magnetic Sensor Alarm Door Window Security System RL-9805

    • Door Window Entry Alarm switch detects entry protecting your home or office whether you are in or out

    Door Window Entry Alarm

    Alarm Security System

    • Turn on and turn off buttons. This Alarm Security System can be easily installed and no wiring required

    Magnetic Sensor Security System


    • Using the latest magnetic energy technology, when separate magnet from host, it will immediately send wireless radio, host receives the waves and instant alarm

    OVP Magnetic Sensor Alarm Door Window Security System RL-9805

    Door Window Entry Alarm

    • This Door Window Entry Alarm is necessary equipment for school, office, shopping and anywhere place which need safety

    Operating instructions:

    • Use the double -side adhesive tape to fix the main unit at the side of the door/window. Attach the bar magnet to door frame/window frame with the arrow aligning with the refernce line of the main unit.
    • Test the setup by switching the system's switch to "ON" position of the main unit and see whether the alarm can be triggered by opening the door/window

    How to Install Door Sensors for a Home Security Alarm System?

    • Chances are, a thief will walk right through a back door or storm door to gain entry into your house. If you install door sensors for a home security alarm system, you won't prevent the thief from opening the door, but you will make the burglar run. Most door sensor kits have a main unit that relays information to the security system coupled with a set of magnetic switches. Read more: How to Install Door Sensors for a Home Security Alarm System


    • Select the door that will have a door sensor. Clean the interior surface of the door so it is free of any dirt or gunk. Also clean the area of the wall where you plan on attaching the main unit of the door sensor kit
    • Round up a screwdriver, electric drill and a carpenter's pencil, as well as a level. You may also need a stud finder and/or drywall anchors
    • Use the stud finder to locate a stud as close to the top of the door frame as possible. If you can't find a stud, you will need to use the drywall anchors to make a secure attachment to the wall
    • Hold the main unit of the door sensor up to the wall. Level it, and then mark where the top of the unit is on the wall with the carpenter's pencil. Also mark the location of the unit's screw holes on the wall
    • Drill pilot holes for the screws. If you are not drilling into a stud, make holes for the drywall anchors instead, then insert the anchors into the wall. Screw the unit to the wall
    • Pick a location on the door and on the door jamb to install the magnetic switches. The switches have to be placed so that they will come in contact with each other when the door is closed and contact is broken when the door is opened
    • Mark the location of the magnetic switches and drill pilot holes. Attach the magnetic switches. Now, set up your home security system to recognize signals from the newly installed door sensor

    Package Included:

    • 1 x Magnetic Sensor Door Window Entry Alarm
    • 3 x 1.5V LR44 Button Batteries

Customers' Reviews

  ( 9 Reviews)
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from (san antonio tx)

Bought this item on

06:21:34 01-17-2012 a loud sound from a little guy Overall:  
  • Pros: Very loud effective in alarming you!
  • Cons: a little difficult to set up, some times you forget its on and it makes a really loud sound
  • Other Thoughts: i use the alarm as a personal alarm system that i keep above my door.

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mel taylor

Bought this item on

00:00:00 05-04-2011 door alarm system Overall:  
  • Other Thoughts: I recently bought two of these alarms for my front and back door. <br/>The product is exceptional for the price. <br/>It is easy to install and easy to set up. <br/>I really feel safe when I leave the house, or even when I am IN the house. Needless to say, THAT was embarrassing when the neighbors would come out to see what was going on.

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Bought this item on

00:00:00 04-19-2011 Recommended Overall:  
  • Other Thoughts: I have three of these. One is used as an instant on alarm for a door that nobody is supposed to EVER open. The alarm is LOUD AS THE DICKENS !!! I mean LOUD LOUD ear hurting loud. That's a good thing.

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Bought this item on

00:00:00 04-13-2011 This alarm works the way it's described Overall:  
  • Other Thoughts: I've had this alarm for 2 months now and just ordered a second for the back door. The door alarm is VERY loud and piercing. I would think a burglar would not bother entering a home if this alarm was set off. If you want to use the Home mode (so that it sounds off right away when the door is opened), you have a choice of selecting "chime" or "alarm."

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Bought this item on

00:00:00 03-18-2011 GREAT security, for a CHEAP price Overall:  
  • Other Thoughts: I bought these door contacts with the thought that it would be some cheesy battery operated plastic doo-dad. Was I WRONG, and sadly mistaken. These door contacts hook up to a wireless converter that transmits a signal to the required Door Bell/Door Contact/Security Alarm Housing.

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B. Dorn

Bought this item on

00:00:00 02-24-2011 Door Window Entry Alarm Overall:  
  • Other Thoughts: I purchased this product for the law firm where I work. We needed a doorbell system that did not buzz or beep at the entryway. In combination with the Honeywell door bell system, we can have a remote, separate location for the sound box, so it doesn't annoy our clients (or me) anymore.

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Bought this item on

00:00:00 02-17-2011 Magnetic Sensor Security System Overall:  
  • Other Thoughts: they dont work with any of my doors. anyone that has any kind of molding around your door frame, they will not work. there is no room for error on how to get these to work. they dont even work on my windows due to a lip around window and frame. they do make a good decoration piece though.

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LeRoy Redmon

Bought this item on

00:00:00 12-02-2010 Alarm Security System Overall:  
  • Other Thoughts: All Good on the alarms, would have given 5 stars but went with 4 due to alarm not as loud as I had expected! But the price was right and I am buying several more soon!

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C. F. Hill

Bought this item on

00:00:00 11-24-2010 Door Window Entry Alarm Overall:  
  • Other Thoughts: These alarms are very basic and really only act as "stand alone" noise makers when the two parts of the unit are separated when a door or window is opened. We installed these on the doors and windows on the dark side of a house that we inherited after a neighbor saw someone attempting to break in (it is apparently well known that the house was unoccupied since my father passed away) and we only needed something that would be loud enough to get some attention from the folks in the area.

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