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ALARM F.A.Q.


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Do I need a security system for my car?
How can I get replacement transmitters for my system?
How do factory security systems compare with aftermarket systems?
What features should I look for in an alarm?
Where are DEI Security systems designed and manufactured?
Will DEI Security systems work with my car?
Will DEI Security systems work with my factory installed system?
Will having a DEI system installed into my car void my new car warranty like my dealer has told me?
Other alarms claim to prevent false alarms, how do DEI security systems differ from the rest?
What is the warranty on DEI Security Products?
What is Code Hopping, and why do I need it?
I've been told that some "code hopping" systems can get out of synchronization and leave the owner locked out of their car. Can this happen with the DEI security systems?
I've heard that alarm systems can sometimes drain the vehicle's battery.
My last alarm was another brand, and I had problems with it that even the manufacturer claimed to know nothing about. Are your alarms tested thoroughly before they are released for sale?
What is remote engine starting, and why do I need it?
What is your least expensive unit which will still provide adequate protection for my car?
Why are all DEI systems short circuit protected?
What is "Automatic or Passive Arming" and how can it benefit me?
What is "Progressive Door Unlocking"?
There are two cars in my family, so if I have a DEI Security system installed in each one, how can I operate both cars with one remote?
How can I determine which DEI Security system is best for me?

 

 1. How can I get replacement transmitters for my system?

• Answer
Authorized DEI retailers can special order remote transmitters if they don’t have them in stock, and then code them to your system. Call 1-855-574-7879 during business hours to speak with a local DEI retailer, or look in the yellow pages under auto security for a Viper, Python or Sidewinder dealer.

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 2. Do I need a security system for my car?

• Answer
Experts will tell you that if you don’t want your car stolen or burglarized, you’ll want some visible layers of protection to discourage a thief. At the very least, you’ll want to park in a safe place with your doors locked, and use a steering wheel lock and an engine disable/starter kill, to prevent a thief from hot wiring your car. However, to offer protection against a thief entering your car and stealing the contents, you should probably have a full featured security system: an alarm with a siren, a brain module with a  sophisticated microprocessor, and a shock/impact sensor.

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 3. How do factory security systems compare with aftermarket systems?

• Answer
It depends on several factors, and you should try to compare apples with apples. For instance, most factory “security systems” are actually “antitheft systems,” meaning that they are essentially engine disable/starter kills and not full featured security systems. But let’s say that you are comparing true security systems. If they are both quality systems, carefully installed, then the main factor that weighs against factory security is the assembly line: all systems for a particular make and model year will be installed exactly the same, with publicly-available instructions in the service manuals telling thieves how to disable them!

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 4. What features should I look for in an alarm?

• Answer
Before we get to features, let’s talk about installation. You can buy the best alarm in the world, but if it’s not properly installed it will invariably let you down. Consumers should always look for a sign at their installing dealer that says MECP Certified. That means that installers working at that store are Mobile Electronics Certified Professionals.
Now that you’ve found an MECP certified installer, what features are you looking for? Let’s first talk about security features, and then convenience  features, because today’s full-featured “car alarm” has both. For security, let’s first talk about sensors. You need a good shock/impact sensor. Besides sounding the alarm if a thief opens a door or your trunk, you want the system to detect a sharp impact, which is the job of the shock sensor. You’ll want a “dual stage” shock sensor, which discriminates between a light impact (which typically provokes chirps or a voice command to stand back) and a heavy impact, which triggers the full wrath of the siren. These are some additional sensors you might want to add to your system
  • an audio sensor, to detect breaking glass
  • a “radar” or field disturbance sensor, especially if you have a convertible or a pickup truck
  • a motion sensor, to detect jacking or towing and a closed loop sensor, to protect a trailer, boat or bicycles.

One other feature you may want to look for is transmitter range. Many transmitters have range of 100 feet or less, but systems with superheterodyne receivers, like DEI’s Super HF (SHF) systems, offer range of up to a full quarter mile!
Now let’s talk about convenience, because the sky’s the limit! Almost anything electrical in the car can be rigged to perform by remote control from the little transmitter on your key chain. Here are four of them:

  • Remote Start. Starts your engine with the push of a button, to warm up the engine and interior in the winter, or to run your air conditioner in the summer.
  • Remote Power Windows. A nice convenience feature. When the system  arms, it automatically rolls your windows up. You can also roll them down or vent them by remote control.
  • Trunk Pop. Open your trunk with the push of a button.
  • Also, don’t forget about the new Valet Car*Com, which allows you to remote control your vehicle by telephone!

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 5. Where are DEI Security systems designed and manufactured?

• Answer
All DEI Security systems are conceived and designed in the USA by DEI’s product development group following rigorous quality standards that are ISO and QS 9000 registered. DEI subcontracts the manufacturing of its products to qualified vendors from around the world.

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 6. Will DEI Security systems work with my car?

• Answer
Yes, DEI Security systems are designed to universally interface with any vehicle that employs a 12 volt electrical system, including cars, trucks, boats, motorcycles, motor homes, SUV'S, etc. Certain DEI remote start systems are even designed to work with automatic transmission vehicles employing diesel engines, from luxury models to heavy equipment and long haul trucks.

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 7. Will DEI Security systems work with my factory installed system?

• Answer
Yes, DEI Security systems are designed to universally interface with any vehicle that employs a 12 volt electrical system, including cars, trucks, boats, motorcycles, motor homes, SUV'S, etc. Certain DEI remote start systems are even designed to work with automatic transmission vehicles employing diesel engines, from luxury models to heavy equipment and long haul trucks.

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 8.
Will having a DEI system installed into my car void my new car warranty like my dealer has told me?

• Answer
No. Under the terms of the Magnuson-Moss Warranty Improvement Act, no new car warranty can be instantly voided simply by the addition of any aftermarket (non-factory) product, including vehicle security products. However, if the added device is of poor quality, or is installed incorrectly, issues of warranty can be brought into play. Your best choice here is to always have any DEI system installed by a professional authorized DEI dealer.

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 9.
Other alarms claim to prevent false alarms, how do DEI security systems differ from the rest?

• Answer
All DEI systems employ what we call Nuisance Prevention Circuitry (NPC) which is smart enough to adjust itself to a variety of environmental conditions such as thunder, jackhammers, or airport parking lots. If NPC activates, only the zone that activated three times in 60 minutes is ignored. All other zones remain active, and disarming with the transmitter doesn't reset the NPC; it's only cleared when the ignition is turned on. Best of all, NPC brings that sensor back online in an hour if no further problems are detected. NPC means no more false alarms.

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 10. What is the warranty on DEI Security Products?

• Answer
At DEI there are two warranty categories. Entry level products in our Hornet, Valet, Failsafe and Installation Technology accessories are covered by a one year warranty. Other products in our mid to upper-end range are covered by a limited lifetime warranty when installed by an authorized DEI retailer.

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 11. What is Code Hopping, and why do I need it?

• Answer
As we are now in the digital age, technology progresses continuously to provide you with better performance, better security and peace of mind. About five years ago in Europe, car thieves began turning to more "high-tech" methods in practicing their trade. The use of devices known "code grabbers" captured and recorded the coded signals that arm and disarm common security systems in order to play them back later and illegally disarm the system. If you have heard of cellular phone cloning, it is very similar. The Code Hopping system is made up of ultra high tech hardware and software that serves to "encrypt" the signals transmitted by DEI security systems remote control. The codes randomly change each time you arm or disarm your alarm following a complex algorithm, so that the codes never repeat. DEI systems currently provide two levels of code hopping security: Our entry level systems uses a 237 Code format that delivers a total of more than 68 billion codes. All of our Viper, Python and Sidewinder systems now include our advanced Clone-Safe 266 Code Hopping format that delivers a total of more than 18 Quintillion Codes – that’s 18 followed by 18 zeros! – plenty of security, and definitely a better mouse trap! Code Hopping provides you with better security and peace of mind, knowing that only your remote controlled transmitter can operate the system. By the way, code grabbers can work on garage doors too, and have likely been used by criminals to gain entry to the home that way. You may want to think about using a Code Hopping receiver on your garage door, so that you can work it with your key chain transmitter. (You'll probably get better range too!)

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 12.

I've been told that some "code hopping" systems can get out of synchronization and leave the owner locked out of their car. Can this happen with the DEI security systems?

• Answer
As we are now in the digital age, technology progresses continuously to provide you with better performance, better security and peace of mind. About five years ago in Europe, car thieves began turning to more "high-tech" methods in practicing their trade. The use of devices known "code grabbers" captured and recorded the coded signals that arm and disarm common security systems in order to play them back later and illegally disarm the system. If you have heard of cellular phone cloning, it is very similar. The Code Hopping system is made up of ultra high tech hardware and software that serves to "encrypt" the signals transmitted by DEI security systems remote control. The codes randomly change each time you arm or disarm your alarm following a complex algorithm, so that the codes never repeat. DEI systems currently provide two levels of code hopping security: Our entry level systems uses a 237 Code format that delivers a total of more than 68 billion codes. All of our Viper, Python and Sidewinder systems now include our advanced Clone-Safe 266 Code Hopping format that delivers a total of more than 18 Quintillion Codes – that’s 18 followed by 18 zeros! – plenty of security, and definitely a better mouse trap! Code Hopping provides you with better security and peace of mind, knowing that only your remote controlled transmitter can operate the system. By the way, code grabbers can work on garage doors too, and have likely been used by criminals to gain entry to the home that way. You may want to think about using a Code Hopping receiver on your garage door, so that you can work it with your key chain transmitter. (You’ll probably get better range too!)

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 13. I've heard that alarm systems can sometimes drain the vehicle's battery.

• Answer
DEI prides itself in producing products with the lowest possible power consumption in the industry! Automobiles today are being produced with extremely complex wiring systems and many on-board computers. This leaves less of the vehicle’s electrical resources free to be used by aftermarket products. For this reason, a major consideration in the design of DEI security systems is the current consumption. This concern has been addressed by reducing the idle current of our systems to the bare minimum necessary for the product to perform properly. The current consumption of our systems during normal operation does not exceed 8 mA, except during the triggered sequence. During the 30-60 second trigger cycle, up to 7A of current may be used to intermittently flash the parking lights. This is not usually a concern, however, since a properly installed and adjusted unit will not trigger unnecessarily. In addition, our systems employ circuitry to assure that repeated false alarms cannot occur. It is important to note that the 6-8mA of current used during normal operation is no more than is used to retain memory of a digital clock or radio station presets in the vehicle. Therefore, logical to conclude that a similar load due to a security system should not significantly impact the overall electrical performance of a vehicle.

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 14.

My last alarm was another brand, and I had problems with it that even the manufacturer claimed to know nothing about. Are your alarms tested thoroughly before they are released for sale?

• Answer
Absolutely! Unlike many of our competitors, DEI never releases insufficiently tested products to consumers. Each of our systems is painstakingly design and engineered to the exacting standards. Next, several prototypes are constructed and meticulously bench tested and made to pass dozens of operational hardware and software tests. Next, another run of prototypes is built for "beta" or actual in-vehicle testing. Beta testing lasts between six to eight weeks, throughout which time every imaginable real-world test is performed. Next, another run of prototypes is built and delivered to selected DEI dealers for more in-vehicle testing in their own selected vehicles. Only after we receive favorable reports from these selected dealers do we authorize the factory to begin production. All our products are produced under rigorous ISO/QS quality standards that insure the highest level of quality, reliability, value and customer friendly features.

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 15. What is remote engine starting, and why do I need it?

• Answer
Remote engine starting is the convenience of being able to start your vehicle's engine by remote control. If your vehicle has an automatic transmission with fuel injection, you can start your car with the push of a button, from the comfort of your home or office, with DEI’s Valet Remote Start systems, as well as superheterodyne remote start systems in the Viper, Python and Sidewinder lines. In the winter, remote start is a lifesaver – you'll wonder how you ever survived without it as you venture outside on freezing mornings, and step into the pre-warmed interior of a vehicle that's ready to go. DEI Remote Start can even be programmed to run your engine at pre-selected intervals during the day or night, circulating the oil and ensuring that your car will start every time, no matter what the elements throw at you! And remote start is a wonderful convenience during the hot summer too. Just preset your car's climate controls upon exiting, and DEI will do the rest!

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 16.
What is your least expensive unit which will still provide adequate protection for my car?

• Answer
This will vary with every car depending on what factory options may have been purchased or installed already. This would be a question best left answered by an authorized DEI dealer. To speak directly with your nearest local U.S. DEI Security dealer, call toll-free 1-855-574-7879 during business hours.

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 17. Why are all DEI systems short circuit protected?

• Answer
ALL DEI systems are designed with short circuit protection built in. In recent years thieves have discovered that an easy way to defeat many of our competitors’ systems was simply to break a taillight lens, short out the parking light bulb inside, and then trigger the alarm. Since many alarms also flash the parking lights when triggered, the short circuiting of the parking light bulb would lead to the short circuiting of the alarm as well, making it short work for the thief. To completely prevent this from happening, all DEI Security systems include several forms of short circuit protection. The first form is fuse protection for all critical circuits including main power, siren, and parking light output. This most basic form of protection prevents a thief from defeating our systems by simply shorting out a parking light bulb or the siren. The second form is advanced integrated circuit technology which allows all other outputs to detect short circuit conditions and temporarily shut down until the short is corrected. This second form of protection protects each unit from accidental damage which might occur during installation or when the vehicle is being serviced. All together these separate forms of short circuit protection make DEI Security systems robust in both security and reliability.

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 18. What is "Automatic or Passive Arming" and how can it benefit me?

• Answer
DEI Security systems include the selectable feature we call "Passive Arming". Simply put, this is the system's ability to arm (activate) itself automatically without any special intervention by the vehicle operator. When placed in this mode, the security system will arm itself 30 seconds after the customer leaves the vehicle. Even if you forget to arm the system, passive arming will protect the vehicle from would-be thieves. This feature can be used in conjunction with power door locks and windows to fully secure the vehicle. *See Active Arming.

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 19. What is "Progressive Door Unlocking"?

• Answer
Progressive Door Unlocking is a safety feature of DEI Security systems, and is featured on all of our sophisticated new ESP systems. When you unlock your doors with other competitive systems they unlock all the doors, allowing uninvited intruders to open the passenger doors. DEI systems prevent this by only unlocking the driver’s door upon disarming the alarm. When you press disarm or unlock again within 20 seconds then it will unlock the rest of the doors, giving full control to the user of who they allow to enter the vehicle.

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 20.
There are two cars in my family, so if I have a DEI Security system installed in each one, how can I operate both cars with one remote?

• Answer
Easy! All of our alarm systems use a system we call Code Learning, which enables one remote to control multiple vehicles. Most newer DEI systems use a 4 button remote that will allow you to control 15 different functions, or cars! See your DEI dealer when you want to have this feature enabled.

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 21. How can I determine which DEI Security system is best for me?

• Answer
We all have different level of needs for either security or convenience. DEI has forever kept this in mind and designed systems with features built-in or that can be assembled on a modular basis. So remember that DEI systems can be customized to your needs and desires and even driving habits! But just to get you started there are essentially three price point levels for our security and convenience products. Entry level systems below $199, mid level systems from $200 to $300, and high-end systems that cost more than $300. These brackets can vary up or down depending on the optional features you deem important. It’s a little like shopping for a computer. The brain has a processor spec, a number of input devices, (mouse, keyboard, scanner) and outputs (screen, printer, modem etc..) Or check out Dr. Detail's new "Design Your Own Security System" page.

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